'MB' definitions:

A unit of information equal to 1000 kilobits or 10^6 (1,000,000) bits [syn: megabit, Mbit, Mb]

A unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes [syn: megabyte, M, MB]

A unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes [syn: megabyte, mebibyte, M, MB, MiB]

(a British degree) a bachelor's degree in medicine [syn: Bachelor of Medicine, MB]