Breadcrumb Home > Dictionary > Index M megabyte: Meaning and Definition of Find definitions for: meg•a•byte Pronunciation: (meg'u-bīt"), [key] — n. Computers. 2 (1,048,576) bytes. (loosely) one million bytes. Abbr.: MB Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: megabyte (Thesaurus) megabuck megacephalic TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: panache Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language