MB

Noun	1.	MB - a unit of information equal to one million (1,048,576) bytes Synonyms: megabyte
	2.	MB - (a British degree) a bachelor's degree in medicine Synonyms: Bachelor of Medicine

(unit)

MB - (Or "Mb") megabytes or megabits. When referring to the size or data transfer rate of a storage device which is accessed in multiples of eight bits (e.g. RAM, hard disk) this almost certainly means megabytes, but when referring to the data transfer rate of a communications system it probably means megabits. Some years ago, it is claimed, "MB" always meant megabytes and "Mb" meant megabits but recently this useful distinction has been lost.

MegaBytecomputer memory unit, G, GB, gigabyte, K, KB, kilobyte, megabyte