/ Dictionary / Index E erucic acid: Meaning and Definition of Find definitions for: e•ru'cic ac'id Pronunciation: (i-r'sik), [key] — Chem. Chem. a solid fatty acid, a homologue of oleic acid, derived from oils of mustard seed and rapeseed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. erubescent eruciform Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language