/ Dictionary / Index M maco: Meaning and Definition of Find definitions for: ma•co Pronunciation: (mä'kō), [key] — n. an Egyptian cotton, used esp. in the manufacture of hosiery and undergarments. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. MacNeice macoma Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language