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 Until now, the limit had been set to 100 micrograms of silica per cubic meter of air, double the new amount. Annalisa Merelli, STAT, 16 Apr. 2024 Nationally, the country saw 7.4 micrograms per cubic meter. Marina Johnson, The Indianapolis Star, 20 Mar. 2024 In September, a test revealed Jaxson’s blood lead levels were 5.2 micrograms of lead per deciliter. Berkeley Lovelace Jr., NBC News, 28 Feb. 2024 The previous annual standard for particulate matter was 12 micrograms per cubic meter of air. Kelly Livingston, ABC News, 7 Feb. 2024 Reducing just 5 micrograms per cubic meter (µg/m3) of fine particle pollution can decrease the risk of low birthweight by 15%. Jeremy Ney, TIME, 9 Apr. 2024 In 2021, the EPA decided to reconsider its decision to keep the annual standard for the pollution at 12 micrograms per cubic meter. The Arizona Republic, 26 Mar. 2024 In Bangladesh, where government guidelines are set at a less-strict 50 micrograms, millions of people are believed to have been affected. Laura Paddison, CNN, 22 Mar. 2024 For these reasons, the CDC recommends that all women of reproductive age consume at least 400 micrograms of folic acid daily. Casey Seiden, Parents, 22 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'microgram.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near microgram

Cite this Entry

“Microgram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microgram. Accessed 25 Apr. 2024.

Medical Definition

microgram

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

More from Merriam-Webster on microgram

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