: 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.
Dudash cites examples ranging from 210 milligrams in 3 ounces of Safe Catch Wild Elite Pure Tuna to 410 milligrams in 3 ounces of Bumble Bee Whole Oysters. — Jo Ann Liguori, Flow Space, 5 Oct. 2026 After 52 weeks, patients who got a 75 milligram (mg) dose of trevogrumab in addition to semaglutide preserved more than 70 percent of their muscle mass loss compared with those who took semaglutide alone. — Emily Kay Votruba, EverydayHealth.com, 2 Oct. 2026 Studies suggest that taking more than 1000 milligrams (mg) of tryptophan can help increase melatonin levels, which can enhance sleep. — Emmanuella Ogbonna, HEALTH, 2 Oct. 2026 Officials have long warned two milligrams of the synthetic opioid is enough to kill someone. — Julia Coin october 1, Charlotte Observer, 1 Oct. 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 9 Oct. 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

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