| A | B |
| Biology | Study of Living things |
| Theology | Study of God |
| Physiology | Study of the Body |
| Kinesiology | Study of the movement of parts of the body |
| Cardiology | Knowledge of the Heart |
| dermatology | knowledge of the skin |
| demonology | knowledge of evil spirits |
| psychology | knowledge of the mind |
| criminology | study of criminal behavior and activity |
| ornithology | study of birds |
| ecology | study of living habitats |
| philology | love of learning, words and literature |
| endocrinology | medical knowledge about glands and internal secretions of the body |
| virology | study of viruses and their diseases |
| immunology | study of the body's defense mechanisms against disease |
| embryology | studying of the embryo |
| epidemiology | study of the origin and causes of disease |
| parapsychology | branch of psychology that studies psychic phenomena, telepathy, etc. |
| cosmology | study of the origins of the universe |
| cosmetology | knowledge and skill in beauty improvement |
| eschatology | study of the end times, the end of the world |
| scatology | study of the excrement of animals |
| geology | study of the earth |
| vulcanology | study of volcanos |
| trilogy | set of three written plays, novels, etc |
| tetralogy | set of four written plays, novels, etc. |
| petrology | study of classification, location, composition of rocks |
| radiology | study of x-rays and radiant energy |
| musicology | knowledge of musical theory, forms, instruments etc. |
| sociology | the science of human society and social relation |
| anthropology | the study of man, his varieties, cultures,etc. |
| archaeology | study of artifacts of ancient peoples |
| astrology | study of supposed influence of stars on humans |
| mythology | writings and study of myth |
| epistemology | the study of knowlege and its acquisition |
| etymology | study of the origin of words |
| hematology | study of blood, its nature and diseases |
| zoology | study of origin, structure, classification, evolution of animals |
| genealogy | study of ancestry and family trees |
| Tautology | needless repetition of words, redundancy |
| Neologism | Formation of a new word, a "coined" word |
| opthamology | study of the functions and diseases of the eye |