1. (

• megabit ,
• Mbit ,
• Mb ,

) a unit of information equal to 1000 kilobits or 10^6 (1,000,000) bits ;

2. (

• megabyte ,
• M ,
• MB ,

) a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes ;

3. (

• megabyte ,
• mebibyte ,
• M ,
• MB ,
• MiB

) a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes ;

4. (

• Bachelor_of_Medicine ,
• MB

) (a British degree) a bachelor's degree in medicine ;