MB uncommon formal informal slang us noun 1. a unit of information equal to one million (1,048,576) bytes Synonymsmegabyte 2. (a British degree) a bachelor''s degree in medicine SynonymsBachelor of Medicine Related words Broader terms bachelor's degreecomputer memory unit Parts gigabyte Part of kilobyte WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
