| Term | Definition |
| anthropology | science dealing with the origin, races, customs and bliefs of humankind |
| bacteriology | science dealing with the study of bacteria |
| biology | science dealing with the study of living organisms |
| cardiology | science dealing with the action and diseases of the heart |
| criminology | scientifici study of crimes and criminals |
| dermatology | science dealing with the skin and its diseases |
| ecology | science dealing with the relation of living things to their environment and to each other |
| ethnology | branch of anthropology dealing with human races, their origin, distribution, culture, etc. |
| genealogy | account of the descent of a person or family from an ancestor |
| geology | science dealing with the earth's history as recorded in rocks |
| meteorology | science dealing with the atmosphere and weather |
| morphology | 1. scientific study of the forms and structures of plants and animals. 2. form and structure of an organism or any of its parts |
| mythology | account or study of myths |
| necrology | list of persons who have did recently; obituary |
| neurology | scientific study of the nervous system and its diseases |
| paleontology | science dealing with life in the remote past as recorded in fossils |
| pathology | 1. science dealing with the nature and causes of disease. 2. something abnormal |
| petrology | scientific study of rocks |
| physiology | science dealing with the functions of living things or their organs |
| psychology | science of the mind |
| sociology | study of the evolution, development, and functioning of human society |
| technology | use of science to achieve a practical purpose; applied science; engineering |
| theology | study of religion and religious ideas |
| logy | science; study; account |
| abiogenesis | spontaneous generation (development of life from lifeless matter) |
| amphibious | 1. able to live both on land and in water 2. attacking with coordinated land, sea, and air forces |
| antibiotic | germ killing substance produced by or derived from a microorganism |
| autobiography | story of a person's life written by that person |
| biochemistry | chemistry dealing with chemical compounds and processes in living plants and animals |
| biocidal | destructive to life or living things |
| biodegradable | capable of being readily decomposed into harmless substances by microorganisms |
| biogenesis | development of life form from preexisting life |
| biography | story of a persons life written by another person |
| biology | science dealing with the study of living organisms |
| biometry or biometrics | statistical analysis of biological data |
| biopsy | diagnostic examination of a piece of tissue from the living body |
| biota | plants and animals living in a region |
| microbe | microscopic life form; microorganism; germ |
| symbiosis | living together in mutually helpful association of two dissimilar organisms |
| bio | life |
| anatomy | 1. dissection of plants, animals, or other things to study their structure; analysis 2. structure |
| appendectomy | surgical removal of the appendix |
| atom | smallest particle of an element |
| atomizer | device for converting a liquid to a fine spray |
| dichotomy | cutting or division into two; division |
| gastrectomy | surgical removal of part or all of the stomach |
| lobotomy | brain surgery for treatment of certain mental disorders |
| mastectomy | surgical removal of a breast |
| phlebotomy | opening of a vein to diminish the blood supply |
| tome | one volume or cut of a work of several volumes; scholarly book |
| tonsillectomy | surgical removal of the tonsils |
| tracheotomy | surgical operation of cutting into the trachea |
| tomy | cutting; operation of incision |
| pod | foot |
| antipodes | parts of the globe |
| anthropod | invertebrate with jointed legs |
| chiropodist | one who treats ailments of the human foot |
| dipody | verse or line of poetry consisting of two feet; a dimeter |
| podiatrist | chiropodist |
| podium | 1. dais; raised platform 2. low wall serving as a foundation |
| psuedopod or pseudopodium | temporary extension of the protoplasm, as in the ameba, to enable the organism to move and take in food |
| tripod | utensil, stool, or caldron having three legs |
| unipod | one-legged support |
| homo | one and the same; like |
| hetero | different |
| homochromatic | having the same color; monochromatic; unicolor |
| heterochromatic | having different colors |
| homogeneous | of the same kind; similar; uniform |
| heterogeneous | differing in kind; dissimilar; varied |
| homology | similarity in structure |
| heterology | dissimilarity in structure |
| homomorphic | exhibiting similarity of form |
| heteromorphic | exhibiting diversity of form |
| homonym | word that sounds like another but differs in meaning and spelling |
| heteronym | word spelled like another but differing in sound and meaning |
| homocentric | having the same center; concentric |
| homophonic | having the same sound or voice |
| heteroclite | deviating from the common rule; abnormal; atypical |
| heteroclite | person or thing deviating from the common rule |
| heterodox | opposed to accepted beliefs or established doctrines, especially in religion; unorthodox |
| hyper | over; above; beyond the ordinary |
| hypo | under; beneath; less than the ordinary |
| hyperacidity | excessive acidity |
| hypoacidity | weak acidity |
| hyperglycemia | excess of sugar in the blood |
| hypoglycemia | abnormally low level of sugar in the blood |
| hypertension | abnormally high blood pressure |
| hypotension | low blood pressure |
| hyperthermia | especially high fever; hyperpyrexia |
| hypothermia | subnormal body temperature |
| hyperthyroid | marked by excessive activity of the thyroid gland |
| hypothyroid | marked by deficient activity of the thyroid gland |
| hyperactive | overactive |
| hyperbole | extravagant exaggeration of statement |
| hypercritical | overcritical |
| hyperpremia | superabundance of blood |
| hyperopia | farsightedness |
| hypersensitive | excessively sensitive; supersensitive |
| hypertrophy | excessive growth or development, as of a body party |
| hypodermic | injected under the skin |
| hypothesis | theory or supposition assumed as a basis for reasoning |
| hypothetical | assumed without proof for the purpose of reasoning; conjectural |