microgram

noun

mi·​cro·​gram ˈmī-krə-ˌgram How to pronounce microgram (audio)
: one millionth of a gram see Metric System Table

Examples of microgram in a Sentence

Recent Examples on the Web
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Exposure to concentrated micrograms of an air pollutant caused about 58% of those deaths, IQAir said. Kerry Breen, CBS News, 11 Mar. 2025 The average amount, 4,800 micrograms per gram of microplastics in brain tissue, was found to be equivalent to the amount found in a standard plastic spoon, according to the study. Mary Kekatos, ABC News, 4 Feb. 2025 One cup of raw purple kale contains only 7 calories and is rich in vitamin K, providing 81.9 micrograms (68% of the DV).40 Massage the leaves of raw kale before eating them. Johna Burdeos, Health, 23 Jan. 2025 Levels in Boston and Chicago were as high as 20 micrograms per cubic meter in some years, and as low as 2 or 3 micrograms per cubic meter in others. Alex Hutchinson, Outside Online, 9 Jan. 2025 See All Example Sentences for microgram

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1890, in the meaning defined above

Time Traveler
The first known use of microgram was circa 1890

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Cite this Entry

“Microgram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgram. Accessed 30 Apr. 2025.

Medical Definition

microgram

noun
mi·​cro·​gram ˈmī-krə-ˌgram How to pronounce microgram (audio)
1
: one millionth of a gram
2

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