nanogram

noun

nano·​gram ˈna-nə-ˌgram How to pronounce nanogram (audio)
: one billionth of a gram

Examples of nanogram 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 man’s tryptase levels were over 2,000 nanograms per milliliter, among the highest values ever recorded in cases of fatal allergic reactions called anaphylaxis. Brenda Goodman, CNN Money, 14 Nov. 2025 The goal was to raise blood levels to more than 40 nanograms per milliliter (40 ng/mL). Angelica Stabile, FOXNews.com, 12 Nov. 2025 Dixon’s autopsy also confirmed the presence of 180 nanograms of cocaine and 55 nanograms of methamphetamine per milliliter of blood at the time of the crash. Chase Hunter, Mercury News, 3 Oct. 2025 Others, such as Ohio and Wisconsin, use per se laws, setting thresholds for drugs like THC — such as 5 nanograms per milliliter of blood. Andrew Yockey, The Conversation, 11 Sep. 2025 See All Example Sentences for nanogram

Word History

Etymology

International Scientific Vocabulary

First Known Use

1951, in the meaning defined above

Time Traveler
The first known use of nanogram was in 1951

Browse Nearby Words

Cite this Entry

“Nanogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nanogram. Accessed 14 Nov. 2025.

Kids Definition

nanogram

noun
nano·​gram
ˈnan-ə-ˌgram
: one billionth of a gram

Medical Definition

nanogram

noun
nano·​gram
variants or chiefly British nanogramme
: one billionth of a gram
abbreviation ng
Last Updated: - Updated example sentences
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