/ Dictionary / Index A antilogarithm: Meaning and Definition of Find definitions for: an•ti•log•a•rithm Pronunciation: (an"ti-lô'gu-ri"um, -rith"-, -log'u-), [key] — n. Math. the number of which a given number is the logarithm; antilog Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antilogarithm (Thesaurus) antilog antilogism Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language