/ Dictionary / Index A acid metaprotein: Meaning and Definition of Find definitions for: ac'id metapro'tein Pronunciation: [key] — Biochem. Biochem. a metaprotein derived by means of a hydrolytic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acid-loving acid number Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language