Breadcrumb Home > Dictionary > Index M MChin: Meaning and Definition of Find definitions for: MChin Pronunciation: [key] Middle Chinese. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. McHenry mCi ✖ Related Content Daily Word Quiz: tautology Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language