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.
Doses higher than 350 milligrams may increase your risk for side effects like nausea and diarrhea. Health, 28 July 2025 In the first, people either received an initial dose of 10 milligrams (mg) of YCT-529 and then a second, 30-mg dose two weeks later or got a placebo each time. Hannah Seo, Scientific American, 22 July 2025 For comparison, a 100-gram banana contains about 98 calories, 23 grams of carbohydrates, 1.7 grams of fiber and 326 milligrams of potassium, according to the U.S. Department of Agriculture's Food Database. Hannah Yasharoff, USA Today, 18 July 2025 After an eight-year follow-up, researchers determined that consuming about 350 milligrams of choline per day was associated with the lowest risk of clinical Alzheimer’s diagnoses in older adults. Angelica Stabile, FOXNews.com, 16 July 2025 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 19 Aug. 2025.

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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