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.
Marine researcher Marcus Eriksen, one of three scientists invited to speak alongside Kennedy and Zeldin at the April EPA announcement, wrote in the Ventura County Star that nanoplastics have now been confirmed in brain, liver and kidney tissue, with particles as small as 200 nanometers. Allison Palmer, Sacbee.com, 30 Apr. 2026 Marine researcher Marcus Eriksen, one of three scientists invited to speak alongside Kennedy and Zeldin at the April announcement, wrote in the Ventura County Star that nanoplastics have now been confirmed in brain, liver and kidney tissue, with particles as small as 200 nanometers. Allison Palmer, Miami Herald, 27 Apr. 2026 The latest Graviton5 chip uses a 3-nanometer manufacturing process and includes 192 cores. Neetika Walter, Interesting Engineering, 24 Apr. 2026 The reason the research team believes Ryugu was bombarded by micrometeorites is due to a fine layer of sodium, just 10 nanometers thick, on the surface of the asteroid's fragments. Robert Lea, Space.com, 24 Apr. 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 2 May. 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

More from Merriam-Webster on nanometer

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