milligram

noun

mil·​li·​gram ˈmi-lə-ˌgram How to pronounce milligram (audio)
: 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.
Women need 310 to 320 milligrams daily. Zia Sherrell, Health, 22 May 2026 For the study, more than 2,300 adults with obesity received retatrutide in doses of 4, 9, or 12 milligrams (mg) or a placebo. Emily Kay Votruba, EverydayHealth.com, 21 May 2026 Supplements typically range from 100 to 400 milligrams or more, usually taken once daily. Morgan Pearson, Verywell Health, 21 May 2026 Companies offer pouches ranging from 50 milligrams to 225 milligrams. Rachel Hale, USA Today, 20 May 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

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Cite this Entry

“Milligram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/milligram. Accessed 30 May. 2026.

Kids Definition

milligram

noun
mil·​li·​gram ˈmil-ə-ˌgram How to pronounce milligram (audio)
: 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

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