**Science** is a way of gaining and organizing knowledge about reality
via repeated, testable explanations and predictions about reality.
Science has largely replaced [religion](Organized_Religion "wikilink")
as the most common method of gaining knowledge about the outside world,
which has been correlated with a massive gains in
[technology](technology "wikilink").

## Types of Science

### A

  - Acarology – study of mites and ticks
  - Accountancy – measurement, processing, analyzing, reporting and
    communication of financial information about economic entity and
    activities
  - Aceology – science of remedies, or of therapeutics; iamatology.
  - Acology – study of medical remedies
  - Acoustics – science of sound
  - Adenology – study of glands
  - Aedoeology – science of generative organs
  - Aerobiology – study of airborne organisms
  - Aerodonetics – science or study of gliding
  - Aerodynamics – dynamics of gases; science of movement in a flow of
    air or gas
  - Aerolithology – study of aerolites; meteorites
  - Aerology – study of the atmosphere
  - Aeronautics – study of navigation through air or space
  - Aerophilately – collecting of air-mail stamps
  - Aerostatics – science of air pressure; art of ballooning
  - Agonistics – art and theory of prize-fighting
  - Agriology – comparative study of primitive peoples
  - Agrobiology – study of plant nutrition; soil yields
  - Agrology – study of agricultural soils
  - Agronomics – study of productivity of land
  - Agrostology – science or study of grasses
  - Alethiology – study of truth
  - Algedonics – science of pleasure and pain
  - Algology – study of algae or the study of pain
  - Anaesthesiology – study of anaesthetics
  - Anaglyptics – art of carving in bas-relief
  - Anagraphy – art of constructing catalogues
  - Anatomy – study of the structure of the body
  - Andragogy – theory and practice of education of adults
  - Anemology – study of wind
  - Angiology – study of blood flow and lymphatic system
  - Anthropobiology – study of human biology
  - Anthropology – study of human cultures
  - Aphnology – science of wealth
  - Apiology – study of bees
  - Arachnology – study of arachnids
  - Archaeology – study of human material remains
  - Archelogy – study of first principles<sup>\[1\]</sup>
  - Archology – science of the origins of government
  - Arctophily – study of teddy bears
  - Areology – study of Mars
  - Aretaics – science of virtue
  - Aristology – science or art of dining
  - Aromachology – study of smell and odor
  - Arthrology – study of joints
  - Arthropodology – study of arthropods like insects and arachnids
  - Astacology – science of crayfish
  - Astheniology – study of diseases of weakening and aging
  - Astrobotany – study of plants in space
  - Astrogeology – study of extraterrestrial geology
  - Astrology – study of influence of celestial objects on humanity
  - Astrometeorology – study of effect of stars on climate
  - Astronomy – study of celestial bodies
  - Astrophysics – study of behaviour of interstellar matter
  - Astroseismology – study of star oscillations
  - Atmology – the science of aqueous vapor
  - Audiology – study of hearing
  - Autecology – study of ecology of one species
  - Autology – scientific study of oneself
  - Auxology – science of growth
  - Avionics – science of electronic devices for aircraft
  - Axiology – science of the ultimate nature of value

### B

  - Bacteriology – study of bacteria
  - Balneology – science of the therapeutic use of baths
  - Barodynamics – science of the support and mechanics of bridges
  - Barology – study of gravitational force
  - Batology – the study of brambles
  - Bibliology – study of books
  - Bibliotics – study of documents to determine authenticity
  - Bioecology – study of interaction of life in the environment
  - Biology – study of life
  - Biochemistry – study of chemical processes within and relating to
    living organism
  - Biometrics – study of biological measurement for security purposes
  - Bionomics – study of organisms interacting in their environments
  - Botany – study of plants
  - Bromatology – study of food
  - Bryology – study of mosses and liverworts

### C

  - Cacogenics – study of racial degeneration
  - Caliology – study of bird's nests
  - Calorifics – study of heat
  - Cambistry – science of international exchange
  - Campanology – art of bell ringing
  - Carcinology – study of crabs and other crustaceans
  - Cardiology – study of the heart
  - Caricology – study of sedges
  - Carpology – study of fruit
  - Cartography – science of making maps and globes
  - Cartophily – hobby of collecting cigarette cards
  - Castrametation – art of designing a camp
  - Catacoustics – science of echoes or reflected sounds
  - Catalactics – science of commercial exchange
  - Catechectics – art of teaching by question and answer
  - Cell Biology – study of the different structures and functions of
    both eukaryote and prokaryote cells
  - Cetology – study of whales and dolphins
  - Chalcography – art of engraving on copper or brass
  - Chalcotriptics – art of taking rubbings from ornamental brasses
  - Chaology – study of chaos or chaos theory
  - Characterology – study of development of character
  - Chemistry – study of properties and behaviours of substances
  - Chionology – study of snow
  - Chirocosmetics – beautifying the hands; art of manicure
  - Chirography – study of handwriting or penmanship
  - Chirology – study of the hands
  - Chiropody – medical science of feet
  - Chorology – science of the geographic description of anything
  - Chrematistics – study of wealth; political economy
  - Chronobiology – study of biological rhythms
  - Chrysology – study of precious metals
  - Ciselure – art of chasing metal
  - Climatology – study of climate
  - Clinology – study of aging or individual decline after maturity
  - Codicology – study of manuscripts
  - Coleopterology – study of beetles and weevils
  - Cometology – study of comets
  - Conchology – study of shells
  - Coprology – study of feces
  - Cosmetology – study of cosmetics
  - Cosmology – study of the universe
  - Craniology – study of the skull
  - Criminology – study of crime; criminals
  - Cryobiology – study of life under cold conditions
  - Cryptology – study of codes
  - Cryptozoology – study of animals for whose existence there is no
    conclusive proof
  - Ctetology – study of the inheritance of acquired characteristics
  - Cyclonology – study of tropical cyclones, e.g. hurricanes
  - Cynology – scientific study of dogs
  - Cytology – study of living cells

### D

  - Dactyliology – study of rings
  - Dactylography – study of fingerprints
  - Dactylology – study of sign language
  - Deltiology – collection and study of picture postcards
  - Demography – study of population
  - Demology – study of human behaviour
  - Demonology – study of demons
  - Dendrochronology – study of tree rings
  - Dendrology – study of trees
  - Deontology – theory or study of moral obligation
  - Dermatoglyphics – study of skin patterns and fingerprints
  - Dermatology – study of skin
  - Desmology – study of ligaments
  - Diabology – study of devils
  - Diagraphics – art of making diagrams or drawings
  - Dialectology – study of dialects
  - Dioptrics – study of light refraction
  - Diplomatics – science of deciphering ancient writings and texts
  - Diplomatology – study of diplomats
  - Docimology – art of assaying
  - Dosiology – study of doses
  - Dramaturgy – art of producing and staging dramatic works
  - Dysgenics – study of racial degeneration
  - Dysteleology – study of purposeless organs

### E

  - Ecclesiology – study of church affairs
  - Eccrinology – study of excretion
  - Ecology – study of environment
  - Economics – study of material wealth (production, distribution, and
    consumption of goods and services)
  - Edaphology – study of soils
  - Egyptology – study of ancient Egypt
  - Ekistics – study of human settlement
  - Electrochemistry – study of relations between electricity and
    chemicals
  - Electrology – study of electricity
  - Electrostatics – study of static electricity
  - Embryology – study of embryos
  - Emetology – study of vomiting
  - Emmenology – study of menstruation
  - Endemiology – study of local diseases
  - Endocrinology – study of glands
  - Energetics – study of energy under transformation
  - Engineering Studies – study of engineering
  - Enigmatology – study of enigmas
  - Entomology – study of insects
  - Entozoology – study of parasites that live inside larger organisms
  - Enzymology – study of enzymes
  - Ephebiatrics – branch of medicine dealing with adolescence
  - Epidemiology – study of diseases; epidemics
  - Epileptology – study of epilepsy
  - Epistemology – study of grounds of knowledge
  - Eremology – study of deserts
  - Ergology – study of effects of work on humans
  - Ergonomics – study of people at work
  - Escapology – study of freeing oneself from constraints
  - Eschatology – study of death; final matters
  - Ethnogeny – study of origins of races or ethnic groups
  - Ethnology – study of cultures
  - Ethnomethodology – study of everyday communication
  - Ethnomusicology – study of comparative musical systems
  - Ethology – study of natural or biological character
  - Ethonomics – study of economic and ethical principles of a society
  - Etiology – science of causes; especially of disease
  - Etymology – study of origins of words
  - Euthenics – science concerned with improving living conditions
  - Exobiology – study of extraterrestrial life
  - Exoplanetology – study of exoplanets

### F

  - Floristry – art of cultivating and selling flowers
  - Fluviology – study of watercourses
  - Folkloristics – study of folklore and fables
  - Forestry – study of the creation, management, use, conservation, and
    repair of forests and associated resources
  - Futurology – study of future

### G

  - Garbology – study of garbage
  - Gastroenterology – study of stomach; intestines
  - Gastronomy – study of fine dining
  - Gemmology – study of gems and jewels
  - Gender Studies – study of gender
  - Genealogy – study of descent of families
  - Genesiology – study of reproduction and heredity
  - Genethlialogy – art of casting horoscopes
  - Geochemistry – study of chemistry of the earth's crust
  - Geochronology – study of measuring geological time
  - Geography – study of surface of the earth and its inhabitants
  - Geology – study of the earth
  - Geomorphogeny – study of the origins of land forms
  - Geoponics – study of agriculture
  - Geotechnics – study of increasing habitability of the earth
  - Geratology – study of decadence and decay
  - Gerocomy – study of old age
  - Gerontology – study of the elderly; aging
  - Gigantology – study of giants
  - Glaciology – study of ice ages and glaciation
  - Glossology – study of language; study of the tongue
  - Glyptography – art of engraving on gems
  - Glyptology – study of gem engravings
  - Gnomonics – the art of measuring time using sundials
  - Gnosiology – study of knowledge; philosophy of knowledge
  - Gnotobiology – study of life in germ-free conditions
  - Graminology – study of grasses
  - Grammatology – study of systems of writing
  - Graphemics – study of systems of representing speech in writing
  - Graphology – study of handwriting
  - Gromatics – science of surveying
  - Gynaecology – study of women’s physiology
  - Gyrostatics – study of rotating bodies

### H

  - Haemataulics – study of movement of blood through blood vessels
  - Hagiology – study of saints
  - Halieutics – study of fishing
  - Hamartiology – study of sin
  - Harmonics – study of musical acoustics
  - Hedonics – part of ethics or psychology dealing with pleasure
  - Helcology – study of ulcers
  - Heliology – science of the sun
  - Helioseismology – study of sun's interior by observing its surface
    oscillations
  - Helminthology – study of worms
  - Hematology – study of blood
  - Heortology – study of religious feasts
  - Hepatology – study of liver
  - Heraldry – study of coats of arms
  - Heredity – study of passing of traits from parents to offspring
  - Heresiology – study of heresies
  - Herpetology – study of reptiles and amphibians
  - Hierology – science of sacred matters
  - Hippiatrics – study of diseases of horses
  - Hippology – study of horses
  - Histology – study of the tissues of organisms
  - Histopathology – study of changes in tissue due to disease
  - Historiography – study of writing history
  - Historiology – study of history
  - Homiletics – art of preaching
  - Home Economics – deals with home and economics
  - Hoplology – study of weapons
  - Horography – art of constructing sundials or clocks
  - Horology – science of time measurement
  - Horticulture – study of gardening
  - Hydrobiology – study of aquatic organisms
  - Hydrodynamics – study of movement in liquids
  - Hydrogeology – study of ground water
  - Hydrography – study of investigating bodies of water
  - Hydrokinetics – study of motion of fluids
  - Hydrology – study of water resources
  - Hydrometeorology – study of atmospheric moisture
  - Hydropathy – study of treating diseases with water
  - Hyetology – science of rainfall
  - Hygiastics – science of health and hygiene
  - Hygienics – study of sanitation; health
  - Hygiology – hygienics; study of cleanliness
  - Hygroscopy – study of humidity
  - Hygrometry – science of humidity
  - Hymnography – study of writing hymns
  - Hymnology – study of hymns
  - Hypnology – study of sleep; study of hypnosis
  - Hypsography – science of measuring heights

### I

  - Iamatology – study of remedies
  - Iatrology – treatise or text on medical topics; study of medicine
  - Iatromathematics – archaic practice of medicine in conjunction with
    astrology
  - Ichnography – art of drawing ground plans; a ground plan
  - Ichnology – science of fossilized footprints
  - Ichthyology – study of fish
  - Iconography – study of drawing symbols
  - Iconology – study of icons; symbols
  - Ideogeny – study of origins of ideas
  - Ideology – science of ideas; system of ideas used to justify
    behaviour
  - Idiomology – study of idiom, jargon or dialect
  - Idiopsychology – study of the psychology of one's own mind
  - Immunogenetics – study of genetic characteristics of immunity
  - Immunology – study of immunity
  - Immunopathology – study of immunity to disease
  - Insectology – study of insects
  - Irenology – study of peace
  - Iridology – study of the iris; diagnosis of disease based on the
    iris of the eye

### K

  - Kalology – study of beauty
  - Karyology – study of cell nuclei
  - Kinematics – study of motion
  - Kinesics – study of gestural communication
  - Kinesiology – study of human movement and posture
  - Kinetics – study of forces producing or changing motion
  - Koniology – study of atmospheric pollutants and dust
  - Ktenology – science of putting people to death
  - Kymatology – study of wave motion

### L

  - Labeorphily – collection and study of beer bottle labels
  - Larithmics – study of population statistics
  - Laryngology – study of larynx
  - Lepidopterology – study of butterflies and moths
  - Leprology – study of leprosy
  - Lexicology – study of words and their meanings
  - Lexigraphy – art of definition of words
  - Lichenology – study of lichens
  - Limacology – study of slugs
  - Limnobiology – study of freshwater ecosystems
  - Limnology – study of bodies of fresh water
  - Linguistics – study of language
  - Liturgiology – study of liturgical forms and church rituals
  - Loimology – study of plagues and epidemics
  - Loxodromy – study of sailing along rhumb-lines

### M

  - Magirics – art of cookery
  - Magnanerie – art of raising silkworms
  - Magnetics – study of magnetism
  - Malacology – study of molluscs
  - Malariology – study of malaria
  - Mammalogy – study of mammals
  - Manège – art of horsemanship
  - Mariology – study of the Virgin Mary
  - Marine Biology– Study of the Oceans Ecosystem
  - Mastology – study of mammals
  - Mathematics – study of magnitude, number, and forms
  - Mazology – mammalogy; study of mammals
  - Mechanics – study of action of force on bodies
  - Meconology – study of or treatise concerning opium
  - Media studies – study of mass media
  - Melittology – study of bees
  - Melology – study of music; musicology
  - Mereology – study of part-whole relationships
  - Mesology – ecology
  - Metallogeny – study of the origin and distribution of metal deposits
  - Metallography – study of the structure and constitution of metals
  - Metallurgy – study of alloying and treating metals
  - Metaphysics – study of principles of nature and thought
  - Metapolitics – study of politics in theory or abstract
  - Metapsychology – study of nature of the mind
  - Meteoritics – study of meteors
  - Meteorology – study of weather
  - Methodology – system of methods used in a particular area of study
    or activity
  - Methyology – study of alcohol
  - Metrics – study of versification
  - Metrology – science of weights and measures
  - Microanatomy – study of microscopic tissues
  - Microbiology – study of microscopic organisms
  - Microclimatology – study of local climates
  - Micrology – study or discussion of trivialities
  - Micropalaeontology – study of microscopic fossils
  - Microphytology – study of very small plant life
  - Microscopy – study of minute objects
  - Mineralogy – study of minerals
  - Molinology – study of mills and milling
  - Momilogy – study of mummies
  - Morphology (disambiguation) – study of forms and the development of
    structures
  - Muscology – study of mosses
  - Museology – study of museums
  - Musicology – study of music
  - Mycology – study of funguses
  - Myology – study of muscles
  - Myrmecology – study of ants
  - Mythology – study of myths; fables; tales

### N

  - Naology – study of church or temple architecture
  - Nasology – study of the nose
  - Nautics – art of navigation
  - Nematology – study of nematodes
  - Neonatology – study of newborn babies
  - Neossology – study of nestling birds
  - Nephology – study of clouds
  - Nephrology – study of the kidneys
  - Neurobiology – study of anatomy of the nervous system
  - Neurology – study of nervous system
  - Neuropsychology – study of relation between brain and behaviour
  - Neurypnology – study of hypnotism
  - Neutrosophy – study of the origin and nature of philosophical
    neutralities
  - Nomology – the science of the laws; especially of the mind
  - Noology – science of the intellect
  - Nosology – study of diseases
  - Nostology – study of senility
  - Notaphily – collecting of bank-notes and cheques
  - Numerology – pseudoscientific study of numbers
  - Numismatics – study of coins
  - Nymphology – study of nymphs
  - Nanotechnology – study of nanite

### O

  - Obstetrics – study of midwifery
  - Oceanography – study of oceans
  - Oceanology – study of oceans
  - Odontology – study of teeth
  - Odonatology– study of dragonflies and damselflies
  - Oenology – study of wines
  - Oikology – science of housekeeping
  - Olfactology – study of the sense of smell
  - Ombrology – study of rain
  - Oncology – study of tumours
  - Oneirology – study of dreams
  - Onomasiology – study of nomenclature
  - Onomastics – study of proper names
  - Ontology – science of pure being; the nature of things
  - Oology – study of eggs
  - Ophiology – study of snakes
  - Ophthalmology – study of eye diseases
  - Optics – study of light
  - Optology – study of sight
  - Optometry – science of examining the eyes
  - Orchidology – study of orchids
  - Ornithology – study of birds
  - Orology – study of mountains
  - Orthoepy – study of correct pronunciation
  - Orthography – study of spelling
  - Orthopterology – study of cockroaches
  - Oryctology – mineralogy or paleontology
  - Osmics – scientific study of smells
  - Osmology – study of smells and olfactory processes
  - Osphresiology – study of the sense of smell
  - Osteology – study of bones
  - Otology – study of the ear
  - Otorhinolaryngology – study of ear, nose and throat

### P

  - Paedology – study of children
  - Paidonosology – study of children's diseases; pediatrics
  - Palaeoanthropology – study of early humans
  - Palaeobiology – study of fossil plants and animals
  - Palaeoclimatology – study of ancient climates
  - Palaeoichthyology – study of ancient fish
  - Palaeolimnology – study of ancient lakes
  - Palaeontology – study of fossils
  - Palaeopedology – study of early soils
  - Paleobotany – study of ancient plants
  - Paleo-osteology – study of ancient bones
  - Palynology – study of pollen
  - Papyrology – study of paper
  - Paradoxology – study of paradoxes
  - Parapsychology – study of unexplained mental phenomena
  - Parasitology – study of parasites
  - Paroemiology – study of proverbs
  - Parthenology – study of virgins
  - Pataphysics – science of imaginary solutions
  - Pathology – study of disease
  - Patrology – study of early Christianity
  - Pedagogics – study of teaching
  - Pedology – study of soils
  - Pelology – study of mud
  - Penology – study of crime and punishment
  - Periodontics – study of gums
  - Peristerophily – pigeon-collecting
  - Pestology – science of pests
  - Petrology – study of rocks
  - Pharmacognosy – study of drugs of animal and plant origin
  - Pharmacology – study of drugs
  - Pharology – study of lighthouses
  - Pharyngology – study of the throat
  - Phenology – study of organisms as affected by climate
  - Phenomenology – study of phenomena
  - Philately – study of postage stamps
  - Philematology – act or study of kissing
  - Phillumeny – collecting of matchbox labels
  - Philology – study of ancient texts; historical linguistics
  - Philosophy – science of knowledge or wisdom
  - Phoniatrics – study and correction of speech defects
  - Phonology – study of speech sounds
  - Photobiology – study of effects of light on organisms
  - Photonics – study of photons
  - Phraseology – study of phrases
  - Phrenology – study of bumps on the head
  - Phycology – study of algae and seaweeds
  - Physics – study of properties of matter and energy
  - Physiology – study of processes of life
  - Phytology – study of plants; botany
  - Piscatology – study of fishes
  - Pisteology – science or study of faith
  - Planetology – study of planets
  - Plutology – political economy; study of wealth
  - Pneumatics – study of mechanics of gases
  - Podiatry – study and treatment of disorders of the foot; chiropody
  - Podology – study of the feet
  - Polemology – study of war
  - Pomology – study of fruit-growing
  - Posology – science of quantity or dosage
  - Potamology – study of rivers
  - Praxeology – study of practical or efficient activity; science of
    efficient action
  - Primatology – study of primates
  - Proctology – study of rectum
  - Prosody – study of versification
  - Protistology – study of protists
  - Proxemics – study of man’s need for personal space
  - Psalligraphy – art of paper-cutting to make pictures
  - Psephology – study of election results and voting trends
  - Pseudology – art or science of lying
  - Pseudoptics – study of optical illusions
  - Psychobiology – study of biology of the mind
  - Psychogenetics – study of internal or mental states
  - Psychognosy – study of mentality, personality or character
  - Psychology – study of mind
  - Psychopathology – study of mental illness
  - Psychophysics – study of link between mental and physical processes
  - Pteridology – study of ferns
  - Pterylology – study of distribution of feathers on birds
  - Pyretology – study of fevers
  - Pyrgology – study of towers
  - Pyroballogy – study of artillery
  - Pyrography – study of woodburning
  - Pyrotechnics – study of combustion through fire or explosions

### Q

  - Quinology – study of quinine.
  - Quantum Mechanics

– a fundamental theory in physics which describes nature at the smallest
scales of energy levels of atoms and subatomic particles.

  - Queer theory – study of issues related to sexual orientation and
    gender identity.

### R

  - Raciology – study of racial differences
  - Radiochemistry – study of ordinary chemical reactions under
    radioactive circumstances
  - Radiology – study of X-rays and their medical applications
  - Reflexology – study of reflexes
  - Rhabdology – knowledge or learning concerning divining rods
  - Rhabdology – art of calculating using numbering rods
  - Rheology – science of the deformation or flow of matter
  - Rheumatology – study of rheumatism
  - Rhinology – study of the nose
  - Rhochrematics – science of inventory management and the movement of
    products
  - Robotics – deals with the designing, construction, and operation of
    robots.
  - Runology – study of runes

### S

  - Sarcology – study of fleshy parts of the body
  - Satanology – study of the devil
  - Scatology – study of excrement or obscene literature
  - Schematonics – art of using gesture to express tones
  - Sciagraphy – art of shading
  - Scripophily – collection of bond and share certificates
  - Sedimentology – study of sediment
  - Seismology – study of earthquakes
  - Selenodesy – study of the shape and features of the moon
  - Selenology – study of the moon
  - Semantics – study of meaning
  - Semantology – science of meanings of words
  - Semasiology – study of meaning; semantics
  - Semiology – study of signs and signals
  - Semiotics – study of signs and symbols
  - Serology – study of serums
  - Sexology – study of sexual behaviour
  - Siderography – art of engraving on steel
  - Siderology – study of iron and its alloys, including steel
  - Sigillography – study of seals
  - Significs – science of meaning
  - Silvics – study of tree's life
  - Sindonology – study of the shroud of Turin
  - Sinology – study of China
  - Sitology – dietetics
  - Sociobiology – study of biological basis of human behaviour
  - Sociology – study of society
  - Somatology – science of substances
  - Sophiology – science of ideas
  - Soteriology – study of theological salvation
  - Spectrology – study of ghosts
  - Spectroscopy – study of spectra
  - Speleology – study and exploration of caves
  - Spermology – study of seeds
  - Sphagnology – study of peat moss
  - Sphragistics – study of seals and signets
  - Sphygmology – study of the pulse
  - Splanchnology – study of the entrails or viscera
  - Spongology – study of sponges
  - Stasiology – study of political parties
  - Statics – study of bodies and forces in equilibrium
  - Stellar Astronomy – study of stars, their origins, and their
    evolution.
  - Stemmatology – study of relationships between text
  - Stoichiology – science of elements of animal tissues
  - Stomatology – study of the mouth
  - Storiology – study of folk tales
  - Stratigraphy – study of geological layers or strata
  - Stratography – art of leading an army
  - Stylometry – studying literature by means of statistical analysis
  - Suicidology – study of suicide
  - Supramolecular chemistry – study of the chemistry of assembled
    molecular sub-units
  - Symbology – study of symbols
  - Symptomatology – study of symptoms of illness
  - Synecology – study of ecological communities
  - Synectics – study of processes of invention
  - Syntax – study of sentence structure
  - Syphilology – study of syphilis
  - Systematics – study of the diversification of living forms, both
    past and present
  - Systematology – study of systems

### T

  - Taxidermy – art of curing and stuffing animals
  - Taxonomy - study of plant, animals and microorganisms classification
  - Tectonics – science of structure of objects, buildings and landforms
  - Tegestology – study and collecting of beer mats
  - Teleology – study of final causes; analysis in terms of purpose
  - Telmatology – study of swamps
  - Tempestology – study of tropical cyclones, e.g. hurricanes
  - Teratology – study of birth defects and later abnormalities in
    living organisms
  - Teuthology – study of cephalopods
  - Textology – study of the production of texts
  - Thalassography – science of the sea
  - Thanatology – study of death and its customs
  - Thaumatology – study of miracles
  - Theology – study of religion; religious doctrine
  - Theriatrics – veterinary medicine
  - Theriogenology – study of animals' reproductive systems
  - Thermodynamics – study of relation of heat to motion
  - Thermokinematics – study of motion of heat
  - Thermology – study of heat
  - Therology – study of wild mammals
  - Thremmatology – science of breeding domestic animals and plants
  - Threpsology – science of nutrition
  - Tidology – study of tides
  - Timbrology – study of postage stamps
  - Tocology – obstetrics; midwifery
  - Tokology – study of childbirth
  - Tonetics – study of pronunciation
  - Topology – study of places and their natural features
  - Toponymics – study of place-names
  - Toreutics – study of artistic work in metal
  - Toxicology – study of poisons
  - Toxophily – love of archery; archery; study of archery
  - Traumatology – study of wounds and their effects
  - Tribology – study of friction and wear between surfaces
  - Trichology – study of hair and its disorders
  - Trophology – study of nutrition
  - Tsiganology – study of gypsies
  - Turbology – study of tornadoes
  - Turnery – art of turning in a lathe
  - Typhlology – study of blindness and the blind
  - Typography – art of printing or using type
  - Typology (disambiguation) – study of types of things

### U

  - Uranography – descriptive astronomy and mapping
  - Uranology – study of the heavens; astronomy
  - Urbanology – study of cities
  - Urenology – study of rust molds
  - Urology – study of urine; urinary tract

### V

  - Venereology – study of venereal disease
  - Vexillology – study of flags
  - Victimology – study of victims
  - Vinology – scientific study of vines and winemaking
  - Virology – study of viruses
  - Vitrics – glassy materials; glassware; study of glassware
  - Volcanology – study of volcanoes
  - Vulcanology – study of volcanoes

### X

  - Xylography – art of engraving on wood
  - Xylology – study of wood

### Z

  - Zenography – study of the planet Jupiter
  - Zooarchaeology – study of animal remains of archaeological sites
  - Zoochemistry – chemistry of animals
  - Zoogeography – study of geographic distribution of animals
  - Zoogeology – study of fossil animal remains
  - Zoology – study of animals
  - Zoonomy – animal physiology
  - Zoonosology – study of animal diseases
  - Zoopathology – study of animal diseases
  - Zoophysics – physics of animal bodies
  - Zoophysiology – study of physiology of animals
  - Zoophytology – study of plant-like animals
  - Zoosemiotics – study of animal communication
  - Zootaxy – science of classifying animals
  - Zootechnics – science of breeding animals
  - Zygology – science of joining and fastening
  - Zymology – science of fermentation
  - Zymurgy – branch of chemistry dealing with brewing and distilling
  - Zythology – study of beer