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.
Ng/ml is nanograms per milliliter. — Lucas Waldron, ProPublica, 6 Jan. 2026 The child’s blood also contained 30 nanograms per milliliter of meth. — Robert Salonga, Mercury News, 8 May 2026 An autopsy measured 53,000 nanograms of meth per milliliter of blood in his body. — Logan Smith, CBS News, 10 Jan. 2026 The concentration of morphine in Tariq’s blood was measured at seventy nanograms per millilitre. — Ben Taub, New Yorker, 26 Jan. 2026 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

nanocrystal
nanogram
nanoid
See all Nearby Words

Cite this Entry

“Nanogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nanogram. Accessed 8 Jul. 2026.

Copy Citation

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
ˈnan-ə-ˌgram How to pronounce nanogram (audio)
: one billionth of a gram
—abbreviation ng
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of gambol

See Definitions and Examples »

Popular in Grammar & Usage

See More

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)
See More

Popular in Wordplay

See More

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
hangman letters and game
Hangman Lightning Round Figure out which word fits in the blanks.
See All