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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The key difference is in their wavelengths… the nanometers. Adam Hurly, Robb Report, 6 Apr. 2026 Researchers revealed that their study introduces a new way to watch photocatalysts work in real time and at extremely small scales of about 10 nanometers. Prabhat Ranjan Mishra, Interesting Engineering, 3 Apr. 2026 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 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 8 Apr. 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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