mg

1 of 4

abbreviation (1)

milligram

mG

2 of 4

abbreviation (2)

milligauss

Mg

3 of 4

symbol

magnesium

MG

4 of 4

abbreviation (3)

1
machine gun
2
major general
3
military government

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Cite this Entry

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

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Medical Definition

mg

1 of 2 abbreviation
milligram

Mg

2 of 2 symbol
magnesium
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