: a unit of mass equal to 1/1000 gram see Metric System Table

Examples of milligram in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
While maximum speed remained slightly higher among participants on the 10-milligram and 20-milligram doses, subjective feelings of intoxication had completely faded. Khloe Quill, FOXNews.com, 3 Sep. 2026 The former campaign manager gave law enforcement a nylon glove containing powder cocaine and a 20-milligram tablet of Adderall, a prescription stimulant that contains amphetamines. Jack Harvel, Kansas City Star, 3 Sep. 2026 For example, Sam’s Club rotisserie chicken contains 430 milligrams of sodium per 3-ounce serving. Jillian Kubala, HEALTH, 1 Sep. 2026 An ounce of dark chocolate with 60% to 70% cocoa provides about 55 milligrams. Jo Ann Liguori, Flow Space, 31 Aug. 2026 See All Example Sentences for milligram

Word History

Etymology

French milligramme, from milli- + gramme gram

First Known Use

1797, in the meaning defined above

Time Traveler
The first known use of milligram was in 1797

Browse Nearby Words

Cite this Entry

“Milligram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/milligram. Accessed 6 Sep. 2026.

Kids Definition

milligram

noun
: a weight equal to ¹⁄₁₀₀₀ gram see metric system

Medical Definition

milligram

noun
mil·​li·​gram
variants or chiefly British milligramme
: one thousandth of a gram
abbreviation mg

More from Merriam-Webster on milligram

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!