/ Dictionary / Index S sonics: Meaning and Definition of Find definitions for: son•ics Pronunciation: (son'iks), [key] — n. (used with a sing. v.) the branch of science that deals with the practical applications of sound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sonic mine soniferous Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language