nano·​gram | \ ˈna-nə-ˌgram How to pronounce nanogram (audio) \

Definition of nanogram

: one billionth of a gram

Examples of nanogram in a Sentence

Recent Examples on the Web The deal also increases the level of THC that qualifies as a positive test, from 35 nanograms of carboxy THC per milliliter of urine to 150, and reduces penalties — including the elimination of suspensions — for players who test positive. Tom Schad, USA TODAY, "Here are the six biggest changes in the NFL's new collective bargaining agreement," 15 Mar. 2020 In most cases, prostate cancer is slow-growing, and a PSA level of less than 4 nanograms per milliliter of blood is considered within the range of normal. New York Times, "Debating the Value of PSA Prostate Screening," 24 Feb. 2020 The Impossible Whopper, Stangle concludes, has 44 milligrams of estrogen compared to just 2.5 nanograms in the beef Whopper. Tim Carman, Washington Post, "Dear men: There’s no evidence that eating Impossible Whoppers will give you breasts," 26 Dec. 2019 The indictment filed Wednesday states Keese was driving under a suspension and had 50 nanograms or more of cocaine metabolite per milliliter of his whole blood, blood serum or plasma. Madeline Mitchell,, "Man who crashed into Metro bus in Evanston had cocaine in his system, documents state," 26 Feb. 2020 Young people's blood was tested for levels of serum cotinine, a metabolite of nicotine; 0.05 to 10 nanograms per milliliter identified exposure to secondhand smoke. Allen Kim, CNN, "Over a third of American kids who don't smoke are exposed to it anyways, study finds. Most are below the poverty line.," 15 Aug. 2019 Fifty nanograms of cocaine per milliliter of blood is the threshold that constitutes an OVI for Ohio drivers, according to Ohio law. Madeline Mitchell,, "Man who crashed into Metro bus in Evanston had cocaine in his system, documents state," 26 Feb. 2020 If there’s more than half a nanogram of a chemical per milliliter of blood plasma, the FDA says that chemical must be tested for possible health effects. oregonlive, "Sunscreen chemicals absorb into bloodstream, but don’t worry -- yet, feds say," 21 Jan. 2020 One was for 15 nanograms over the limit and the other was for 40 grams over the limit. Mary Kay Cabot, cleveland, "WR Antonio Callaway has appealed a 10-game suspension for using a tainted CBD product, source says; waived by Browns," 14 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nanogram.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nanogram

1951, in the meaning defined above

History and Etymology for nanogram

International Scientific Vocabulary

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Time Traveler for nanogram

Time Traveler

The first known use of nanogram was in 1951

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Cite this Entry

“Nanogram.” Dictionary, Merriam-Webster, Accessed 17 Jan. 2021.

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More Definitions for nanogram


variants: or chiefly British nanogramme \ ˈnan-​ə-​ˌgram How to pronounce nanogram (audio) \

Medical Definition of nanogram

: one billionth of a gram abbreviation ng

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