/ Dictionary / Index A alpha test: Meaning and Definition of Find definitions for: al'pha test" Pronunciation: [key] a set of mental tests designed to measure the general intelligence of individuals able to read and write, used by the U.S. Army in World War I. an early test of new or updated computer software conducted by the developers of the program prior to beta-testing by potential users. Cf. beta test. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alpha-stannic acid alpha-tocopherol Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language