| Term | Definition |
| anatomy | dissection of plants, animals, or other things to study their structure; analysis |
| appendectomy | surgical removal of the appendix |
| atom | smallest particle of an element |
| atomizer | device for converitng a liquid to a fine spray |
| dichotomy | cutting or division into two; dissection |
| 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 "cute" of a work of several volumes; scholarly book |
| tosnillectomy | surgical removal of the tonsils |
| tracheotomy | surgical operation of cutting into the trachea |
| antipodes | parts of the globe diametrically opposite to each other |
| arthropod | invertebrate with jointed legs e.g. insects |
| chiropodist | one who treats ailments of the human foot |
| dipody | verse consisting of two feet; a dimeter |
| podiatrist | chiropodist |
| podium | dais; raised platform |
| pseudopod | temporary extentsion of the protoplasm, as in the amoeba, to enable the organism to move and take in food |
| tripod | utensil, stool, or cauldron having three legs |
| unipod | one-legged support |
| hetero/homochromatic | having different colors, having the same color |
| hetero/homogeneous | differing in kind; of the same kind |
| hetero/homology | dissimilarity in structure; similarity in structure |
| hetero/homomorphic | exhibiting diversity in form; exhibiting similarity of form |
| hetero/homonym | word spelled like another but differing in sound and meaning; word that sounds like another but differs in meaning and spelling |
| homocentric | having the same center; cocentric |
| 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 |
| hyper/hypoacidity | excessive acidity; weak acidity |
| hyper/hypoglycemia | excess of blood sugar; low level of blood sugar |
| hyper/hypotension | abnormally high blood pressure; low blood pressure |
| hyper/hypothermia | especially high fever; subnormal body temperature |
| hyper/hypothyroid | marked by excessive activity of the thyroid gland; marked by deficient activity of the thyroid gland |
| hyperactive | overactive |
| hyperbole | extravagant exaggeration of statement |
| hypercritical | overcritical |
| hyperemia | superabundance of blood |
| hyperopia | farsightedeness |
| hypertrophy | excessive growth or development, as of body |
| hypodermic | injected under the skin |
| hypothesis | theory or supposition assumed as a basis for reasoning |
| hypothetical | assumed without proff for the purpose of reasoning; conjectural |
| endo/exocrin | secreting internally; secreting externally |
| endo/exogamy | marrying withing a tribe or group; marriage outside the tribe or group |
| endo/exogenous | produced from within, due to internal causes; produced from withouth, due to external causes |
| endo/exoskeleton | internal skeleton or supporting framework in an animal; hard protective structure developed outside that body, as the shell of a lobster |
| endo/exosmosis | osmosis inward; osmosis outward |
| endocarditis | inflammation of the lining of the heart |
| endoderm | membranelike tissue lining the digestive tract |
| endoparasite | parasite living on the insde of its host |
| endophyte | plant growing within another plant |
| exoteric | know externally; readily understandable |
| exotic | introduced from another country; foreign; strikingly unusual; strange |
| anarchy | total absence of rule or government; confusion; disorder |
| autarchy | rule by an absolute sovereign |
| hierarchy | body of rules or officials grouped in ranks, each being subordinate to the rank above it; pecking order |
| matriarchy | form of social organization in which the mother rules the family or tribe, descent being traced through the mother |
| monarchy | state ruled over by a single person, as a king or queen |
| oligarchy | for of government in which a few people have the power |
| patriarchy | form of social organization in which the father rules the family or tribe, descent being traced through the father |
| geocentric | measured from the earth's center; having the earth as a center |
| geodetic | pertaining to geodesy |
| geography | study of the earth's surface, climate, continents, people, products |
| geology | science dealing with the earth's history as recorded in rocks |
| geometry | math dealing with lines, angles, surfaces, and solids |
| geomorphic | pertaining to the shape of the earth or the form of its surface |
| geophysics | science treating of the forces that modify the earth |
| geopolitics | study of government and its policies as affected by physical geography |
| geoponics | art or science of agriculture |
| georgic | agricultural |
| goergic | poem on husbandry |
| geotropism | response to earth's gravity as the growing of roots downward in the ground |
| apogee | farthest point from the earth in the orbit of a heavenly body; culmination |
| antipathy | aversion |
| apathy | lack of feeling, emotion, interest, or excitement; indifference |
| empathy | complete understanding of another's feelings |
| pathetic | arousing pity |
| pathos | quality in drama, speech, literature, music, or events that arouses a feeling of pity or sadness |
| sympathy | sharing of another's trouble; compassion |
| telepathy | transference of the thoughts and feelings of one person to another by no apparent means of communication |
| homeopathy | treatment of disease with minute doses of a remedy that, if given in massive doses to a healthy person would produce effects like those of the disease |
| osteopath | practitioner of osteopathy |
| pathogenic | causing disease |
| pathological | due to disease |
| psychopathic | pertaining to mental disease; insane |
| amorphous | having no definite form; shapeless; unorganized |
| anthropomorphic | attributing human form or characteristics to beings not human, especially gods |
| dimorphous | occurring under two distinct forms |
| endomorphic | having a form deriving largely from the embryo's inner layer; having a heavy body build |
| heteromorphic | exhibiting diversity of form |
| metamorphosis | change of form |
| monomorphic | having a single form |
| morphology | branch of biology dealing with the form and structure of animals and plants; form and structure of an organism or any of its parts |
| pericardium | membranous sac enclosing the heart |
| perigee | nearest point to the earth in the orbit of a heavenly body |
| perihelion | nearest point to the sun in the orbit of a heavenly body |
| perimeter | whole outer boundary or measurement of a surface or figure |
| periodontics | branch of dentistry dealing with diseases of the bone and gum tissues supporting the teeth |
| peripatetic | traveling about; itinerant |
| peripheral | on the periphery; outside or away from the central part, as in peripheral vision; only slightly connected with what is essential |
| peripheral | device that cane be attached to or used with a computer, such as a keyboard, monitor, printer, or scanner |
| periphrastic | expressed in a roundabout way; circumlocutory |
| periscope | instrument permitting those in a submarine a view of the surface |
| peristalsis | wavelike contraction of the walls of the intestines which propels contents onward |
| peristyle | rows of columns around a building or court |
| peritonitis | inflammation of the peritoneum |