megabyte

Noun

1.

megabyte - a unit of information equal to one million (1,048,576) bytes Synonyms: MB

(unit)

megabyte - (MB, colloquially "meg") 2^20 = 1,048,576 bytes = 1024 kilobytes. 1024 megabytes are one gigabyte. The text of a six hundred page paperback book would require about a megabyte of ASCII storage. See prefix.

computer memory unit, G, GB, gigabyte, K, KB, kilobyte, MB