| Branch Name | Description |
|---|
| Acarology | Branch of Zoology dealing with ticks & mites. |
| Acoustics | The study of sound or the science of sound. |
| Acrobatics | The art of performing acrobatic feats (gymnastics) |
| Aerodynamics | I. The branch of mechanics that deals with the motion of air and other gases.
II. The study of the motion and control of solid bodies like aircraft,missiles,etc in air. |
| Aeronautics | The science or art of flight. |
| Aerostatics | The branch of statics that deals with gases in equilibrium and with gases and bodies in them. |
| Aesthetics | The philosophy of fine arts. |
| Aetiology | The science of causation. |
| Agrobiology | The science of plant life and plant nutrition. |
| Agronomic | The science of managing land or crops. |
| Agronomy | The science of soil management & production of field crops. |
| Agrostology | The study of grasses. |
| Algology | The scientifc study of Algae or seaweed. |
| Anatomy | The science dealing with the structure of animals, plants or human body. |
| Anemology | The science of wind. |
| Anesthesiology | The clinical discipline concerned with providing anesthesia . |
| Angiology | The science of blood & lymph vessels. |
| Anthropology | The science that deals with the origin and physical and cultural development of mankind. |
| Arboriculture | Cultivation of trees & vegetables. |
| Archaeology | The study of antiquities. |
| Astrology | The ancient art of predicting the course of human destinies with the help of indications deduced from the position and movement of heavenly bodies. |
| Astronautics | The science of space travel. |
| Astronomy | The study of the heavenly bodies. |
| Astrophysics | The branch of astronomy concerned with the physical nature of heavenly bodies. |
| Bacteriology | The study of bacteria. |
| Biochemistry | The study of chemical processes of living things. |
| Biometry | The application of mathematics to the study of living things. |
| Bionics | The study of functions, characteristics and phenomena observed in the living world and the application of this knowledge to the world of machines. |
| Bionomics | The study of the relation of an organism to its environment. |
| Bionomy | The science of the laws of life. |
| Biophysics | The physics of vital processes (living things). |
| Biostatics | The application of statistics to biological fields in the broadest sense.. |
| Botany | The study of plants. |
| Calisthenics | The systematic exercises for attaining strength & gracefulness. |
| Cardiology | The science that deals with heart functions and diseases. |
| Carpology | The science of fruits & seeds. |
| Cartography | The science of map-making. |
| Ceramics | The art and technology of making objects from clay etc. (pottery). |
| Cetology | The science of aquatic mammals, especially whales. |
| Chemistry | The study of elements and their laws of combination and behaviour. |
| Chemotherapy | The treatment of disease by using chemical substances. |
| Choreography | The science of dance & composing ballet. |
| Chorography | The science of geographical regions ; plant & animal distribution. |
| Chronobiology | The study of duration of life. |
| Chronology | The science of arranging time in periods and ascertaining the dates and historical order of past events. |
| Climatology | The branch of meteorology concerned with the mean physical state of the atmosphere along with statistical variations in space as well as time as reflected in the weather behaviour over a period of past years. |
| Conchology | The branch of Zoology dealing with the shells of molluscs. |
| Cosmogony | The science of the nature of heavenly bodies. |
| Cosmography | The science that describes & maps the main features of universe. |
| Cosmology | The science of the nature,origin & history of the universe. |
| Crainology | The science that deals with skull. |
| Criminology | The study of crime & criminals. |
| Cryptography | The study of ciphers (secret writings). |
| Crystallography | The study of structures,forms & properties of crystals. |
| Cryogenics | The science dealing with the production,control & application of very low temperatures. |
| Cryptology | The science dealing with codes & ciphers. |
| Cytochemistry | The branch of cytology dealing with the chemistry of cells. |
| Cytogenetics | The branch of biology dealing with the study of heredity from the point of view of cytology & genetics. |
| Cytology | The study of cells,especially their formation,structure & functions. |
| Dactylography | The study of finger prints for the purpose of identification. |
| Dactyliology | The technique of communication by signs made with the fingers . It is generally used by the deaf. |
| Dermatology | The branch of medicine concerned with skin and disease. |
| Dendrology | The study of trees. |
| Denotology | The study of moral responsibilities. |
| Ecology | The study of the relation of animals and plants to their surroundings,animate & inanimate. |
| Econometrics | The application of mathematics in testing economic theories. |
| Economics | The science dealing with the production,distribution and consumption of goods & services. |
| Embryology | The study of development of embryos. |
| Endocrinology | The branch of medicine concerned with endocrine glands and hormones. |
| Entomology | The study of insects. |
| Epidemiology | The branch of medicine dealing with incidence & risks of diseases. |
| Epigraphy | The study of inscriptions. |
| Eschatology | The study of death, destiny. |
| Ethnography | A branch of anthropology dealing with the scientific description of individual cultures. |
| Ethics | Psychological study of moral principles. |
| Ethnology | A branch of anthropology that deals with the origin, distribution and distinguishing characteristics of the race of mankind. |
| Ethology | The study of animal behaviour. |
| Etymology | The study of origin and history of words. |
| Eugenics | The study of the production of better offspring by the careful selection of parents. |
| Exobiology | A branch of biology that deals with the search for extraterrestrial life,especially intelligent life,outside our solar system. Exobiology is sometimes called xenobiology or astrobiology. |
| Futurology | The study of the future. |
| Gastroenterology | The branch of medicine concerned with the alimentary tract . |
| Genealogy | The study of family ancestries & histories. |
| Genecology | The study of genetical composition of plant population in relation to their habitats. |
| Genesiology | The science of generation. |
| Genetics | The branch of biology dealing with the phenomena of heredity and the laws governing it. |
| Geobiology | The biology of terrestrial life. |
| Geobotany | The branch of Botany dealing with all aspects of relations between plants & the earth's surface. |
| Geochemistry | The study of the chemical composition of the earth's crust and the changes which takes place within it. |
| Geography | The science of the earth's surface,physical features,climate,population,etc. |
| Geology | The science that deals with the physical history of the earth. |
| Geomedicine | The branch of medicine dealing with the influence of climate and environmental conditions on health. |
| Geomorphology | The study of the characteristics,origin and development of land forms. |
| Geophysics | The physics of the earth. |
| Gerontology | The study of old age,its phenomena , diseases, etc. |
| Glottochronlogy | The study of the history of language. |
| Gynecology | The branch of medicine concerned respectively with childbirth and the female reproductive and associated organs . |
| Haematology | The study of blood. |
| Hepatology | The study of liver and biliary tract . |
| Heliotherapy | The sun cure. |
| Helminthology | The study of worms, especially parasitic worms. |
| Herpetology | The study of reptiles & amphibians. |
| Histology | The study of tissues. |
| Horticulture | The cultivation of flowers,fruits,vegetables and ornamental plants. |
| Hydrodynamics | The mathematical study of the forces,energy and pressure of liquid in motion. |
| Hydrography | The science of water measurements of the earth with special reference to their use for navigation. |
| Hydrology | The study water with reference to its occurrence and properties in the hydrosphere and atmosphere. |
| Hydrometallurgy | The process of extracting metals at ordinary temperature by leaching ore with liquids. |
| Hydropathy | The cure of disease by the internal and external use of water. |
| Hydroponics | The cultivation of plants by placing the roots in nutrient solution rather than in soil. |
| Hydrostatics | The mathematical study of forces and pressures in liquids. |
| Hygiene | The science of health and its preservation. |
| Hypnology | The study of sleep. |
| Ichthyology | The study of fish. |
| Iconography | Teaching with aid of pictures & models. |
| Immunology | The study of the immune system which includes the innate and adaptive immune system in humans . |
| Iconology | The study of symbolic representations. |
| Jurisprudence | The science of law. |
| Lexicography | The writing or compiling of dictionaries. |
| Limnology | The study of freshwater life. |
| Lithology | The study of the characteristics of rocks. |
| Mammography | Radiography of the mammary glands. |
| Metallography | The study of the crystalline structures of metals & alloys. |
| Metallurgy | The process of extracting metals from their ores. |
| Meteorology | The science of the atmosphere and its phenomena. |
| Metrology | The scientific study of weights & measures. |
| Microbiology | The study of minute living organisms including bacteria,moulds and pathogenic protozoa. |
| Molecular Biology | The study of the structure of the molecules which are of importance in biology. |
| Morphology | The science of organic forms and structures. |
| Mycology | The study of fungi & fungus diseases. |
| Myology | The study of muscles. |
| Myrmecology | The study of ants. |
| Nephrology | The branch of medicine concerned with diseases of the kidneys . |
| Neurology | The study of the nervous systems,its functions and its disorders. |
| Neuropathology | The study of diseases of the nervous system. |
| Nomology | The study of law making or scientific laws. |
| Nosology | The study of classification of diseases. |
| Numerology | The study of numbers,study of the date and year of one's birth to determine their influence on one's future life. |
| Numismatics | The study of coins & medals. |
| Odontography | A description of the teeth. |
| Odontology | The scientific study of the teeth. |
| Oenology | The study of wines. |
| Oncology | The study of tumour or cancer. |
| Oneirology | The study of dreams. |
| Ontology | The study of nature of existence. |
| Oology | The study of eggs. |
| Optics | The study of nature & properties of light. |
| Ophthalmology | The study of diseases of the eyes and their treatment . |
| Ornithology | The study of birds. |
| Orthoepy | The study of correct pronunciation. |
| Orthopedics | The science of prevention, diagnosis and treatment of diseases and abnormalities of musculoskeletal systems. |
| Osteology | The study of the bones. |
| Osteopathology | Any disease of bones. |
| Osteopathy | A therapeutic system based upon detecting and correcting faulty structure. |
| Otolaryngology | The branch of medicine concerned with treatment of ear, nose and throat disorders. |
| Paleobotany | The study of fossil plants. |
| Paleontology | The study fossils. |
| Palynology | The study of fossil pollen. |
| Pathology | The study of diseases. |
| Pedagogy | The art or method of teaching. |
| Pedology | The study of soil. |
| Penology | The study of prisons & treatment of criminals. |
| Pharmacology | The study of drugs and their actions . |
| Pharyngology | The science of the pharynx & its diseases. |
| Phenology | The study of periodicity phenomena of plants. |
| Philately | The collection and study of postage stamps,revenue stamps,etc. |
| Philology | The study of written records , their authenticity, etc. |
| Phonetics | The study of speech, sounds and their production , transmission,reception etc. |
| Photobiology | The branch of biology dealing with the effect of light on organisms. |
| Phrenology | The study of the faculties & qualities of mind from the shape of the skull. |
| Phthisiology | The scientific study of tuberculosis. |
| Phycology | The study of algae. |
| Physical science | The study of natural laws and process other than those peculiar to living matters,as in Physics ,Chemistry and Astronomy. |
| Physics | The study of the properties of matter. |
| Physiography | The science of physical geography. |
| Physiology | The study of the functioning of the various organs of living beings. |
| Phytogeny | Origin and growth of plants. |
| Pomology | The science that deals with fruits & fruit growing. |
| Psychiatry | The branch of medicine that studies and treats mental disorders. |
| Psychology | The study of human & animal behaviour. |
| Pulmonology | The branch of medicine concerned with diseases of the lungs and the respiratory system. |
| Radio Astronomy | The study of heavenly bodies by the reception and analysis of the radio frequency electro-magnetic radiations which they emit or reflect. |
| Radiobiology | The branch of biology which deals with the effect of radiations on living organisms. |
| Radiology | The study of X-Rays and radioactivity. |
| Reflexology | The study of reflexes or practice of healing through foot massage. |
| Rheumatology | the branch of medicine concerned with diagnosis and treatment of inflammatory diseases of the joints and other organ systems, such as arthritis . |
| Rheology | The study of the deformation, flow of matter. |
| Scatology | The study of excrement; obscene language. |
| Seismology | The study of earthquakes and the phenomena associated with it. |
| Selenology | The scientific study of moon, its nature,origin,movements, etc. |
| Sericulture | The raising of silk worms for the production of raw silk. |
| Sociology | The study of human society. |
| Spectroscopy | The study of matter and energy by the use of spectroscope. |
| Spelology | The study of caves. |
| Teleology | The study of the evidences of design or purpose in nature. |
| Telepathy | Communication between minds by some means other than sensory perception. |
| Therapeutics | The science and art of healing. |
| Topography | A special description of a part or region. |
| Toxicology | The study of poisons. |
| Urology | The study of urinary tracts of males and females, and on the male reproductive system. |
| Virology | The study of viruses. |
| Xylology | The study of the structure of wood. |
| Zoogeography | The study of the distribution of animals on the surface of the globe. |
| Zoometry | The comparative measurements of the parts of the animals. |
| Zoology | The study of animal life. |