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Synonyms

mg

1 American  
  1. milligram; milligrams.


Mg 2 American  

abbreviation

Music.
  1. left hand.


Mg 3 American  
Symbol, Chemistry.
  1. magnesium.


MG 4 American  
  1. machine gun.

  2. major general.

  3. military government.

  4. myasthenia gravis.


MG 1 British  

abbreviation

  1. machine gun

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mg 2 British  

abbreviation

  1. Madagascar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mg 3 British  

symbol

  1. milligram

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Mg 4 British  

symbol

  1. magnesium

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mg Scientific  
  1. Abbreviation of milligram


Etymology

Origin of Mg

From French main gauche

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The American Heart Association recommends limiting sodium intake to no more than 2,300 mg per day, with an ideal target of less than 1,500 mg for most adults, especially those with high blood pressure.

From Science Daily • Mar. 31, 2026

If you instead go for Taco Bell’s under-eye masks, just drink plenty of water with your Taco Bell Nachos BellGrande, which is high in fat and has more than 1,100 mg of skin-dehydrating sodium.

From Los Angeles Times • Mar. 18, 2026

The biotech company said patients taking aleniglipron for 11 months in a Phase 2 trial had placebo-adjusted weight loss of 16.3% for the 180 mg dose and 16.0% for the 240 mg dose.

From MarketWatch • Mar. 16, 2026

The site lists a 30-day supply of Novo Nordisk’s Wegovy 1.5 mg weight loss-pill for $149, down from an original price of $1,349.

From Barron's • Feb. 6, 2026

“What do they do when they get back every night? What’s up with the concrete build- mg? “

From "The Maze Runner" by James Dashner