mb

1 of 3

abbreviation (1)

millibar

Mb

2 of 3

abbreviation (2)

megabit

MB

3 of 3

abbreviation (3)

1
bachelor of medicine
2
Manitoba
3
megabyte
4
municipal borough

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Cite this Entry

“Mb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mb. Accessed 31 Oct. 2025.

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Medical Definition

MB

abbreviation
bachelor of medicine
Etymology

Abbreviation

New Latin medicinae baccalaureus

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