/ Dictionary / Index S soniferous: Meaning and Definition of Find definitions for: so•nif•er•ous Pronunciation: (su-nif'ur-us, sō-), [key] — adj. conveying or producing sound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sonics son-in-law 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