/ Dictionary / Index S sylvic acid: Meaning and Definition of Find definitions for: syl'vic ac'id Pronunciation: (sil'vik), [key] — Chem. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sylvian fissure sylviculture 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