Fields of science

Fields of science are widely-recognized categories of specialized expertise within science, and typically embody their own terminology and nomenclature.

Natural sciences

Physical Sciences

Chemistry

* Analytical chemistry
* Biochemistry
* Computational chemistry
* Electrochemistry
* Inorganic chemistry
* Materials science
* Medicinal chemistry
* Organic chemistry
* Polymer chemistry
* Physical chemistry
* Quantum chemistry
* Spectroscopy
* Stereochemistry
* Thermochemistry
* Thermodynamics

Physics

* Acoustics
* Agrophysics
* Atomic, Molecular, and Optical physics
* Biophysics
* Computational physics
* Condensed matter physics
* Cryogenics
* Dynamics
* Electricity & Magnetism
* Fluid dynamics
* Geophysics
* Materials physics
* Mathematical physics
* Mechanics
* Nuclear physics
* Optics
* Particle physics (or High Energy Physics)
* Plasma physics
* Polymer physics
* Quantum Physics
* Statics
* Solid State
* Thermodynamics
* Vehicle dynamics
* Electronics
* Laser Physics

Astronomy

* Archaeoastronomy
* Astrobiology
* Astrochemistry
* Astrodynamics
* Astrometry
* Astrophysics
* Cosmochemistry
* Cosmology

* Extragalactic astronomy
* Galactic astronomy
* Physical cosmology
* Planetary geology
* Planetary science
* Solar astronomy
* Stellar astronomy

Earth sciences

* Biogeography
* Cartography
* Climatology
* Coastal geography
* Geodesy
* Geography
* Geology
* Geomorphology

* Geostatistics
* Geophysics
* Glaciology
* Hydrology
* Hydrogeology
* Mineralogy
* Meteorology
* Oceanography

* Paleoclimatology
* Paleontology
* Petrology
* Limnology
* Seismology
* Soil science
* Topography
* Volcanology

Environmental sciences

*Environmental science
*Environmental chemistry
*Environmental geology
*Environmental soil science

Life Sciences

Biology

* Anatomy
* Astrobiology
* Biochemistry
* Bioinformatics
* Biology
* Biophysics
* Biotechnology
* Botany
* Cell biology
* Chronobiology
* Cladistics
* Cytology
* Dermatology
* Developmental biology
* Ecology
* Embryology
* Entomology
* Epidemiology
* Ethology
* Evolution (Evolutionary biology)
* Evolutionary developmental biology
* Freshwater Biology
* Genetics (Population genetics, Genomics, Proteomics)
* Histology
* Immunology
* Kinesiology
* Marine biology
* Microbiology
* Molecular Biology
* Morphology
* Mycology
* Neuroscience
* Ontogeny
* Phycology (Algology)
* Phylogeny
* Physical anthropology
* Physical therapy
* Physiology
* Population dynamics
* Structural biology
* Taxonomy
* Toxicology
* Virology
* Zoology

Formal sciences

Computer sciences

* Theory of computation
** Automata theory (Formal languages)
** Computability theory
** Computational complexity theory
** Concurrency theory
* Algorithms
** Randomized algorithms
** Distributed algorithms
** Parallel algorithms
* Data structures
* Computer architecture
** VLSI design
* Operating systems
* Computer communications (networks)
** Information theory
** Internet, World wide web
** Wireless computing (Mobile computing)
* Computer security and reliability
** Cryptography
** Fault-tolerant computing
* Distributed computing
** Grid computing
* Parallel computing
** High-performance computing
* Quantum computing
* Computer graphics
** Image processing
** Scientific visualization
** Computational geometry
* Software engineering
** Formal methods (Formal verification)
* Programming languages
** Programming paradigms
*** Object-oriented programming
*** Functional programming
** Program semantics
** Type theory
** Compilers
** Concurrent programming languages
* Information science
** Database
*** Relational database
*** Distributed database
*** Object database
** Multimedia, hypermedia
** Data mining
** Information retrieval
* Artificial intelligence
**Cognitive science
*** Automated reasoning
*** Machine learning
**** Artificial neural network
*** Natural language processing (Computational linguistics)
*** Computer vision
** Expert systems
** Robotics
* Human-computer interaction
* Computing in Mathematics, Natural sciences, Engineering and Medicine
** Numerical analysis
** Algebraic (symbolic) computation
** Computational number theory
** Computational mathematics
** Scientific computing (Computational science)
** Computational biology (bioinformatics)
** Computational physics
** Computational chemistry
** Computational neuroscience
** Computer-aided engineering
*** Finite element analysis
***Computational fluid dynamics
* Computing in Social sciences, Arts and Humanities, Professions
**Computational economics
** Computational sociology
** Computational finance
** Humanities computing (Digital Humanities)
* Information systems (Business informatics)
** Information technology
** Management information systems
** Health informatics
* Computer and society
** History of computing (history of computer hardware & history of computer science)
** Humanistic informatics
** Community informatics

See also Branches of Computer Science and ACM [http://www.acm.org/class/ Computing Classification System]

Mathematics

*Algebra
** Group theory
*** Group representation
** Ring theory
** Field theory
** Linear algebra (Vector space)
** Multilinear algebra
** Lie algebra
** Associative algebra
** Non-associative algebra
** Universal algebra
** Homological algebra
** Category theory
** Lattice theory (Order theory)
** Differential algebra
*Analysis
**Real analysis
***Calculus
**Complex analysis
**Functional analysis
*** Operator theory
**Non-standard analysis
**Harmonic analysis
**p-adic analysis
**Ordinary differential equations
**Partial differential equations
*Probability theory
**Measure theory
**Ergodic theory
**Stochastic process
*Geometry and Topology
**General topology
**Algebraic topology
**Geometric topology
**Differential topology
**Algebraic geometry
**Differential geometry
**Projective geometry
**Affine geometry
**Non-Euclidean geometry
**Convex geometry
**Discrete geometry
*Trigonometry
*Number theory
**Analytic number theory
**Algebraic number theory
**Geometric number theory
*Logic and Foundations of mathematics
**Set theory
**Proof theory
**Model theory
**Recursion theory
**Modal logic
**Intuitionistic logic
*Applied mathematics
**Statistics
***Mathematical statistics
***Econometrics
***Actuarial science
***Demography
**Approximation theory
**Numerical analysis
**Optimization (Mathematical programming)
***Operations research
***Linear programming
**Dynamical systems
***Chaos theory
***Fractal geometry
**Mathematical physics
***Quantum field theory
***Statistical mechanics
**Theory of computation
***Computational complexity theory
**Information theory
**Cryptography
**Combinatorics
***Coding theory
**Graph theory
**Game theory

see also Branches of Mathematics and AMS [http://www.ams.org/msc/ Mathematics Subject Classification] "

Systems science

* Chaos theory
* Complex systems
* Complexity theory
* Cybernetics
** Biocybernetics
** Engineering cybernetics
** Management cybernetics
** Medical cybernetics
** New Cybernetics
** Second-order cybernetics
* Control theory
** Affect control theory
** Control engineering
** Control systems
** Dynamical systems
** Perceptual control theory

* Operations research
* Systems biology
** Computational systems biology
** Synthetic biology
** Systems immunology
* Systems dynamics
** Social dynamics
* Systems ecology
** Ecosystem ecology
* Systems engineering
** Biological systems engineering
** Earth systems engineering and management
** Enterprise systems engineering
** Systems analysis

* Systems psychology
** Ergonomics
** Family systems theory
** Systemic therapy
* Systems theory
** Biochemical systems theory
** Ecological systems theory
** Developmental systems theory
** General systems theory
** Living systems theory
** LTI system theory
** Sociotechnical systems theory
** Mathematical system theory
** World-systems theory

Social sciences

Anthropology

* Applied anthropology
* Anthropology of religion
* Archaeology
* Cultural anthropology
* Ethnobiology
* Ethnography
* Ethnology
* Ethnopoetics
* Evolutionary anthropology

* Experimental archaeology
* Historical archaeology
* Linguistic anthropology
* Medical anthropology
* Physical anthropology
* Psychological anthropology
* Zooarchaeology

Economics

* Macroeconomics
* Microeconomics
* Behavioural economics
* Bioeconomics
* Development economics
* Econometrics
* Economic geography
* Economic history
* Economic sociology
* Energy economics
* Entrepreneurial Economics
* Environmental economics
* Feminist economics
* Financial economics
* Green economics
* Industrial organization
* International economics
* Institutional economics
* Islamic economics
* Labor economics
* Law and Economics

* Managerial economics
* Mathematical economics
* Monetary economics
* Public finance
* Public economics
* Platform economics
* Real estate economics
* Resource economics
* Socialist economics
* Welfare economics
* Computational economics
* Econometrics
* Evolutionary economics
* Experimental economics
* Social psychology
* Neuroeconomics
* Political economy
* Socioeconomics
* Transport economics

Psychology

* Behavior analysis
* Biopsychology
* Cognitive psychology
* Clinical psychology
* Cultural psychology
* Developmental psychology
* Educational psychology
* Evolutionary psychology
* Experimental psychology
* Forensic psychology
* Health psychology

* Humanistic psychology
* Industrial and organizational psychology
* Neuropsychology
* Personality psychology
* Psychometrics
* Psychology of religion
* Psychophysics
* Physical psychology
* Sensation and perception psychology
* Social psychology

Geography

* Cartography
* Human geography
** Critical geography
** Cultural geography
** Feminist geography
** Economic geography
** Development geography
** Historical geography
** Time geography
** Political geography & geopolitics
** Marxist geography
** Military geography
** Strategic geography
** Population geography
** Social geography
** Behavioral geography
** Children's geographies
** Health geography
** Tourism geography
** Urban geography
* Environmental geography
* Physical geography
** Biogeography
** Climatology
** Palaeoclimatology
** Coastal geography
** Geomorphology
** Geodesy
** Hydrology/Hydrography
** Glaciology
** Limnology
** Oceanography
** Pedology
** Landscape ecology
** Palaeogeography
* Regional geography

Linguistics

* Historical linguistics
* Morphology
* Phonetics
* Phonology
* Semantics
* Semiotics
* Syntax
* Etymology

Philosophy

Not considered a science by some thinkers, instead considered a precursor of it. Several fields of philosophy are more directly relevant to the natural and social sciences than others. These include:
* Epistemology
* Ethics
* Logic
* Philosophy of mind
* Philosophy of science

Political science

* Public policy
* Public administration
* Ideology
* Game theory
* Psephology (voting systems and electoral behaviour)
* Political economy
* Geopolitics and political geography
* Policy studies and public policy analysis
* Comparative politics
* National systems
* Cross-national political analysis
* Supranational and intergovernmental politics
* Globalization studies
* Political development
* International relations theory
* Foreign policy analysis
* public administration and local government studies
* Political psychology, bureaucratic, administrative and judicial behaviour
* Legislative processes and public law
* Power in international relations and the theory of great powers and superpowers.
* Political science of religion
* Research methodology
* Security Studies
* Strategic Studies

Sociology

See also Subfields of sociology
* Criminology
* Demography

Education

Management

Applied sciences

Architecture

* Architectural engineering
* Architecture

* Building science
* Urbanism

Cognitive sciences

* Cognitive neuroscience
* Cognitive psychology

* Neuropsychology
* Psycholinguistics

Engineering

* Aeronautical engineering
* Aerospace engineering
* Agricultural engineering
* Agricultural science
* Biomedical engineering
* Chemical engineering
* Civil engineering
* Computer engineering
* Control engineering

* Electrical engineering
* Language engineering
* Marine engineering
* Mechanical engineering
* Mining engineering
* Nuclear engineering
* Polymer engineering
* Software engineering
* Systems engineering

Health sciences

* Conservation medicine
* Dentistry
* Nutrition

* Medicine
* Veterinary medicine

Medicine

* Anatomy
* Dermatology
* Gynecology
* Immunology
* Internal medicine
* Neurology
* Ophthalmology
* Pathology
* Pathophysiology

* Pediatrics
* Pharmacology
* Physical therapy
* Physiology
* Psychiatry
* Radiology
* Toxicology
* Urology

=Military Science=

* Military Organisation
* Military Education and Training
* Military History
* Military Engineering
* Military Strategy and Tactics

See also

* Science
* List of fields of doctoral studies
* List of academic disciplines
*Complete Joint Academic Classification of Subjects (JACS) from Higher Education Statistics Agency (HESA) in the United Kingdom: [http://www.hesa.ac.uk/jacs/completeclassification.htm]