/ Dictionary / Index B butyraceous: Meaning and Definition of Find definitions for: bu•tyr•a•ceous Pronunciation: (by"tu-rā'shus), [key] — adj. of the nature of, resembling, or containing butter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: butyraceous (Thesaurus) butyl nitrite butyral 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