/ Dictionary / Index A alternating group: Meaning and Definition of Find definitions for: al'ternating group' Pronunciation: [key] — Math. Math. the subgroup consisting of all even permutations, of the group of all permutations of a finite set. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alternating current alternating light Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language