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.
The most common hawthorn berry supplement dose is daily between 250 and 500 milligrams. Bestreviews, Chicago Tribune, 11 Feb. 2026 Most adult men need 11 milligrams per day, and most adult women need 8 milligrams. Lindsay Curtis, Verywell Health, 11 Feb. 2026 People who drank two or three cups of caffeinated coffee or tea a day — about 300 milligrams of caffeine — showed the best results. David Matthews, New York Daily News, 10 Feb. 2026 The Now Supplements Saw Palmetto Extract is one of the best options due to having a strong 320-milligram dose of extract with the addition of pumpkin seed oil. Bestreviews, Mercury News, 10 Feb. 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 18 Feb. 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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