| Term | Definition |
| authentic | genuine; real |
| autobiography | story of a person's life written by the person himself |
| autocrat | ruler exercising self-derived, absolute power; dictator |
| autograph | person's signature written by himself |
| automatic | acting by itself |
| automation | technique of making a process self-operating with the use of electronic controls |
| autonomous | independent |
| autonomy | independence |
| autopsy | medical examination of a dead body to determine the cause of death |
| aristocracy | government powered by a small upper class OR ruling class of nobles; "privileged class" |
| autocracy | government controlled by one individual with unlimited power |
| bureaucracy | government by bureaus or groups of officials |
| democracy | government or country governed by the people |
| plutocracy | government or country governed by the rich |
| technocracy | government or country governed by technical experts |
| aristocrat | member of the aristocracy |
| democrat | member of the Democratic Party |
| demagogue | political leader who stirs up the people for personal advantage |
| democratic | based on the principles of democracy |
| democratize | make democratic |
| epidemic adj | affecting many people in an area at the same time |
| epidemic noun | outbreak of a rapidly spreading, contagious disease affecting many people at the same time |
| panacea | remedy for all ills |
| Pan-American | all the countries of North, South, and Central America |
| pandemonium | wild uproar; wild disorder |
| panoply | complete suit of armor |
| panorama | complete, unobstructed view |
| pantomime | dramatic performance that is all signs and gestures without words |
| anachronism | error in chronology/time order |
| chronicle | historical account of events in time order |
| chronological | arranged in time order |
| chronology | arrangement of data or events in the order or time of occurence |
| synchronize | make simultaneous |
| kleptomania | insane impulse to steal |
| mania | insanity OR craze |
| maniac | insane person |
| maniacal | characterized by madness |
| pyromania | insane impulse to set fires |
| encyclopedia | work offering alphabetically arranged information |
| orthopedic | having to do with orthopedics (the science of correcting and preventing deformities, especially in children) |
| pedagogue | teacher of children |
| pedagogy | art of teaching |
| pediatrician | physician specializing in the treatment of babies and children |
| pediatrics | branch of medicine dealing with the care, development, and diseases of children |
| orthodontist | dentist specializing in orthodontics |
| orthodox | generally accepted, especially in religion |
| orthography | correct spelling |
| orthopedist | physician specializing in the correction and prevention of deformities, especially in children |
| unorthodox | not in accord with accepted belief or practice |
| genealogy | history of the descent of a person from an ancestor |
| genesis | origin |
| heterogeneous | differing in kind |
| homogeneous | of the same kind |
| homogenize | make homogeneous |
| barometer | instrument for measuring atmospheric pressure |
| chronometer | instrument for measuring time |
| diameter | "measure across"; thickness; width |
| meter | device for measuring OR unit of measure in the metric system |
| odometer | instrument attached to a vehicle to measure the distance traveled |
| photometer | instrument for measuring the intensity of light |
| speedometer | instrument for measuring speed |
| symmetry | correspondence in measurements |
| antagonist | opponent; foe |
| antibiotic | substance that works against harmful bacteria |
| antibody | substance that works against germs or poisons produced by germs |
| antidote | remedy that acts against the effects of poison OR countermeasure |
| antihistamine | drug used against certain allergies or cold symptoms |
| antipathy | feeling against |
| antiseptic | germicide |
| antitoxin | substance formed in the body as the result of the introduction of a toxin |
| antonym | word meaning the opposite of another word |
| acronym | name formed from the first letter(s) of other words |
| anonymous | unidentified |
| homonym | word that sounds like another but has a different meaning |
| onomatopoeia | use of words whose sounds suggests their meaning |
| pseudonym | pen name |
| synonym | word that has the same meaning as another word |
| dermatologist | physician specializing in dermatology |
| dermis | inner layer of skin |
| epidermis | outer layer of skin |
| hypodermic | beneath the skin |
| taxidermist | one who practices taxidermy (art of preparing, stuffing, and mounting the skins of animals in lifelike form) |