This is a list of words ending in -ology. The word ending "-logy" is derived from the Ancient Greek language. List *algology—synonym for phycology *allergology -- the study of allergies *anthropology -- the study of humans *apiology -- the study of bees *archaeology -- the study of past human cultures *astrology -- the study of stars (in order to make predictions) *bacteriology -- the study of bacteria *biology -- the study of living organisms *carcinology --the study of crustaceans, including crabs *cartology -- the study of maps and map-making *cetology -- the study of whales *Christology -- the study of Jesus Christ *climatology -- the study of climate *conchology -- the study of mollusc shells *cosmetology -- the study and application of beauty treatments *cosmology -- the study of the universe *criminology -- the study of crime and criminals *cynology -- the study of dog training *ecology -- the study of interactions in environments *entomology -- the study of insects *embryology -- the study of embryos *eschatology -- the study of death, judgement, afterlife *ethnobiology -- the study of life pertaining to certain peoples *ethnology -- the study of cultural heritage *ethology -- the study of animal behavior *etiology -- the study of causes and reasons *etymology -- the study of word origins *geology -- the study of the Earth *graphology -- the study of handwriting *herpetology -- the study of amphibians and reptiles *hippology -- the study of horses *hydrology -- the study of water sources *hypnology -- the study of sleep *ichthyology -- the study of fish *malacology -- the study of molluscs *mammalogy -- the study of mammals *meteorology -- the study of climate and weather *microbiology -- the study of microscopic life *mineralogy -- the study of minerals *morphology -- the study of the structure of organisms *musicology -- the study of music *mycology -- the study of fungi *myrmecology -- the study of ants *nephology -- the study of clouds *neurology -- the study of the nervous system *ornithology -- the study of birds *ophiology -- the study of snakes *ophthalmology -- the study of eyes *oncology -- the study of cancer *otology -- the study of ears *paleoanthropology-- the study of ancient human-like creatures *paleobiology -- the study of ancient life *paleontology -- the study of ancient life, studied through fossils *paleozoology -- the study of ancient animals *pathology -- the study and diagnosis of disease *pedology -- either the study of soil or the *petrology -- the study of rocks *pharmacology -- the study of drugs *phenology -- the study of periodic biological phenomena *phenomenology -- *philology -- the study of historical language *phonology -- the study of speech sounds *phraseology -- the study of use of words and phrases *phrenology -- the hypothesis that a person's traits are determined by the shape of the skull *phycology -- the scientific study of algae (also called algology) *physical anthropology -- the study of human characteristics *physiology -- the study of biological processes within organisms *phytology -- the study of plants (usually called botany) *phytosociology -- the study of relationships and characteristics of plants *planetology -- the study of planets *pomology -- the study of fruit *psychology -- the study of mind and behavior *seismology -- the study of earthquakes *sexology -- the study of sexual behavior *sociology -- the study of society *somatology -- the study of human characteristics *speleology -- the study of caves *topology -- a part of mathematics concerned with the study of spatial properties of objects that remain unchanged when the objects are deformed *toxicology -- the study of poisons *urology -- the study of the urinary system *urbanology -- the study of cities *vulcanology -- the study of volcanoes *zoology -- the study of animals