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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Last year, Xiaomi launched the XRing O1, a system-on-chip (SoC) based on an advanced 3 nanometer manufacturing process. Arjun Kharpal, CNBC, 4 Mar. 2026 But the biggest change happens on the nanometer scale, as the MacBook Pro now has access to the new M5 Pro and M5 Max chips. Brian Westover, PC Magazine, 4 Mar. 2026 Looking ahead, the Duke team plans to shrink contact lengths even further down to 15 nanometers and explore alternative contact metals that could reduce resistance in ways compatible with real chip architectures. Rupendra Brahambhatt, Interesting Engineering, 1 Mar. 2026 Each panel on the helmet has 12 red lights (120 total), which are on a spectrum of 620 to 660 nanometers (nm). Boutayna Chokrane, Wired News, 27 Feb. 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

Browse Nearby Words

Cite this Entry

“Nanometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nanometer. Accessed 13 Mar. 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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