| Term | Definition |
| acrophobia | fear of being at a great height |
| agoraphobia | fear of open spaces |
| Anglophobia | dislike of England or the English |
| claustrophobia | fear of enclosed or narrow spaces |
| Germanophobia | dislike of Germany or the Germans |
| hydrophobia | abnormal fear of water, rabies |
| monophobia | fear of being alone |
| phobia | fear, dread, aversion |
| photophobia | morbid aversion to light |
| xenophobia | aversion to foreigners |
| Russophobe | one who dislikes Russia or the Russians |
| philanthropist | lover of humanity, person active in promoting human welfare |
| philanthropy | love of humanity, especially as shown in donations to charitable and socially useful causes |
| philatelist | stamp collector |
| philately | collection and study of stamps |
| philharmonic | pertaining to a musical organization, such as a symphony orchestra |
| philhellenism | support of Greece or the Greeks |
| philogyny | love of women |
| philology | study (love) of language and literature |
| philosopher | lover of, or searcher for, wisdom or knowledge; person who regulates his or her life by the light of reason |
| Anglophile | supporter of England or the English |
| audiophile | one who is enthusiastic about high-fidelity sound reproduction on records and tapes |
| bibliophile | lover of books |
| Francophile | supporter of France or the French |
| misandry | hatred of males |
| misanthrope | hater of humanity |
| misanthropy | hatred of humanity |
| misogamy | hatred of marriage |
| misogyny | hatred of women |
| misology | hatred of argument, reasoning, or discussion |
| misoneism | hatred of anything new |
| dysentery | inflammation of the large intestine |
| dysfunctional | abnormal functioning, as of an organ of the body |
| dyslexia | impairment of the ability to read |
| dyslogistic | expressing disapproval or censure; uncomplimentary |
| dyspepsia | difficult digestion; indigestion |
| dysphagia | difficulty in swallowing |
| dysphasia | speech difficulty resulting from brain injury |
| dysphoria | sense of great unhappiness or dissatisfaction |
| dystopia | imaginary place where living conditions are dreadful |
| dystrophy | faulty nutrition |
| eugenics | science dealing with improving the hereditary |
| eulogize | write or speak in praise of someone |
| eupepsia | good digestion |
| euphemism | substitution of a good expression for an unpleasant one |
| euphonious | pleasing in sound |
| euphoria | sense of great happiness or well-being |
| euthanasia | controversial practice of mercifully putting to death a person suffering from an incurable, painfully distressing disease |
| euthenics | science dealing with improving living conditions |
| macrocosm | great world; universe |
| macron | horizontal mark indicating that the vowel over which it is placed is long |
| macroscopic | large enough to be visible to the naked eye |
| microbe | microscopic living animal or plant; microorganism |
| microbicide | agent that destroys microbes |
| microdent | having small teeth |
| microfilm | film of very small size |
| microgram | millionth of a gram |
| micrometer | millionth of a meter |
| microorganism | microscopic living animal or plant |
| microsecond | millionth of a second |
| microsurgery | surgery with the aid of microscopes and minute instruments or laser beams |
| microvolt | millionth of a volt |
| microwatt | millionth of a watt |
| microwave | very short electromagnetic wave, cooking device |
| amoral | not moral; without a sense of moral responsibiliby |
| amorphous | without/having no definite form or shape |
| anarchy | total absence of rule or government; confusion; disorder |
| anemia | lack of a normal number of red blood cells |
| anesthesia | loss of feeling or sensation resulting from ether, chloroform, novocaine, etc |
| anesthetic | durg that produces anesthesia |
| anhydrous | destitute of/without water |
| anomalous | not normal; abnormal |
| anomaly | deviation from the common rule |
| anonymous | nameless; of unknown or unnamed origin |
| anoxia | deprivation of (state of being without) oxygen |
| apnea | temporary cessation of breathing |
| aseptic | free from disease-causing microorganisms |
| asymptomatic | showing no symptoms of disease |
| atheism | godlessness; denial of the existence of a supreme being |
| atrophy | lack of growth from disuse or want of nourishment |
| atypical | unlike the typical |
| monarchy | rule by a single person |
| monochromatic | of one color |
| monocle | eyeglass for one eye |
| monogamy | marriage with one mate at a time |
| monogram | two or more letters interwoven to represent a name |
| monograph | written account of a single thing or class of things |
| monolith | single stone of large size |
| monolog(ue) | long speech by one person in a group |
| monomania | excessive concentration on one idea or subject |
| monomorphic | having a single form |
| monosyllabic | having one syllable |
| monotheism | belief that there is one god |
| monotonous | continuing in an unchanging tone; wearying |
| polyarchy | rule by many |
| polychromatic | having a variety of colors; multicolored |
| polygamy | marriage to several mates at the same time |
| polyglot (adj) | speaking several languages |
| polyglot (n) | person who speaks several languages |
| polygon | closed plane figures having, literally, many angles, and therefore many sides |
| polymorphic | having various forms |
| polyphonic | having many sounds or voices |
| polysyllabic | having more than three syllables |
| polytheism | belief that there is a plurality of gods |
| polytechnic | dealing with many technical arts or sciences |
| anthropology | science dealing with the origin, races, customs, and beliefs 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 | scientific 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 rock |
| meteorology | science dealing with the atmosphere and weather |
| morphology 1 | scientific study of the forms and structures of plants and animals |
| morphology 2 | form and structure of an organism or any of its parts |
| mythology | account or study of myths |
| necrology | list of persons who have died recently |
| 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 |
| pathology 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 |
| theology | study of religion and religious ideas |