microgram

¹ American  

[mahy-kruh-gram] / ˈmaɪ krəˌgræm /

especially British, microgramme

noun

1. a unit of mass or weight equal to one millionth of a gram, used chiefly in microchemistry. μg

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microgram ² American  

[mahy-kruh-gram] / ˈmaɪ krəˌgræm /

noun

1. micrograph.

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Etymology

Origin of microgram¹

First recorded in 1885–90; micro- + -gram ²

Origin of microgram²

micro- + -gram ¹

Example Sentences

Even at their peak, lead levels barely surpassed 1 microgram per liter — well below the U.S.

From Los Angeles Times

In a commercial setting he said levels above 600 micrograms may pose a risk to human health because of inhalation of dust and contact with the skin.

From BBC

In Bangladesh, an estimated 50 million people have consumed water exceeding the World Health Organization's guideline of 10 micrograms per liter.

From Science Daily

Instead, it would list the concentration in micrograms of lead per deciliter of blood.

From Los Angeles Times

According to the California Department of Public Health, the average blood lead level for adults in the United States is less than 1 microgram per deciliter.

From Los Angeles Times