milligram — English Dictionary

Noun

1. An SI unit of mass equal to 10⁻³ grams. Symbol: mg

   Examples

   Holonyms: gram < kilogram < megagram < gigagram

   Meronyms: picogram < nanogram < microgram

   More examples (2)

   The US Food and Drug Administration defines this limit as anything more than 400 milligrams of caffeine daily for healthy adults. This is equivalent to four or five cups of coffee.

   Blue No. 1 and yellow No. 6 may also be toxic to some human cells. And as little as 1 milligram of yellow dye No. 5 may cause irritability, restlessness and sleep disturbances for sensitive children.

Noun

1. one thousandth (1/1,000) gram

   Synonyms

   mg

   Broader terms

   metric weight unitweight unit