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.
Previous reports have suggested that the next iPhone Air could have a 2-nanometer process, which would significantly improve battery life, wiping away any remaining doubts about that aspect. David Phelan, Forbes.com, 20 Jan. 2026 In a typical process for heterojunction (HJT) cells, a nanometer-scale seed layer of copper or nickel is first deposited through physical vapor deposition. Ni Tao, Interesting Engineering, 19 Jan. 2026 In semiconductor manufacturing, smaller nanometer sizes mean denser transistors, which boost processing speed and improve energy efficiency. Anniek Bao,dylan Butts, CNBC, 19 Jan. 2026 These filter particles are only 5 nanometers, compared to the standard filter size of 60 nanometers. New Atlas, 16 Jan. 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 24 Jan. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!