nanometer

noun

nano·​me·​ter ˈna-nə-ˌmē-tər How to pronounce nanometer (audio)
: one billionth of a meter

Examples of nanometer 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.
Vortex structures At 416 nanometers, the solar surface is dominated by granules, the convection cells that carry heat from the interior. — Jacek Krywko, ArsTechnica, 7 Aug. 2026 These mRNA-lipid nanoparticles, or LNPs, are tiny spheres about 100 nanometers in diameter that protect mRNA from degradation and facilitate its delivery into target cells. — Li Li, The Conversation, 6 Aug. 2026 One of the mesh’s main advantages is its ability to capture particles spanning an exceptionally broad size range, from approximately five millimeters down to tens of nanometers. — Georgina Jedikovska, Interesting Engineering, 5 Aug. 2026 That substrate can only fit about 10,000 logic gates, where a modern 2- or 5-nanometer chip fits billions. — Jackie Snow, IEEE Spectrum, 30 July 2026 See All Example Sentences for nanometer

Word History

Etymology

International Scientific Vocabulary

First Known Use

1963, in the meaning defined above

Time Traveler
The first known use of nanometer was in 1963

Rhymes for nanometer

See All Rhymes for nanometer

Browse Nearby Words

nanomachine
nanometer
nanoparticle
See all Nearby Words

Cite this Entry

“Nanometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nanometer. Accessed 11 Aug. 2026.

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Kids Definition

nanometer

noun
nano·​meter
ˈnan-ə-ˌmēt-ər
: one billionth of a meter

Medical Definition

nanometer

noun
nano·​me·​ter
variants or chiefly British nanometre
ˈnan-ə-ˌmēt-ər How to pronounce nanometer (audio)
: one billionth of a meter
—abbreviation nm

More from Merriam-Webster on nanometer

Nglish: Translation of nanometer for Spanish Speakers

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