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
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These lenses use specialized materials or additives built into the lens itself to absorb light in the 380 to 460 nanometer wavelength range, according to Greenwich Ophthalmology Associates. Samantha Agate, Sacbee.com, 12 June 2026 Each channel measures just one nanometer wide, roughly 100,000 times thinner than a human hair. Mrigakshi Dixit, Interesting Engineering, 10 June 2026 Aerosolized particles can range from a few nanometers to several tens of micrometers, which could make a quick squirt of deodorant or hairspray a catastrophic event. Victor Tangermann, Futurism, 10 June 2026 The chip is made in Taiwan on TSMC’s 6-nanometer node. Katie Tarasov, CNBC, 9 June 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

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Cite this Entry

“Nanometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nanometer. Accessed 14 Jun. 2026.

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
: one billionth of a meter
abbreviation nm

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