/ Dictionary / Index M macroinstruction: Meaning and Definition of Find definitions for: mac•ro•in•struc•tion Pronunciation: (mak'rō-in-struk"shun), [key] — n. Computers. macro (def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. macrography macrolecithal Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language