Definition of nano-

1 : one billionth (10−9) part of nanosecond
2 : nanotechnology nanomachine
3 : nanoscale nanoparticle nanotube

History and Etymology for nano-

International Scientific Vocabulary, from Greek nanos dwarf

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Cite this Entry

“Nano-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nano-. Accessed 14 Apr. 2021.

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English Language Learners Definition of nano-

technical : one billionth part of something

More from Merriam-Webster on nano-

Britannica English: Translation of nano- for Arabic Speakers

Britannica.com: Encyclopedia article about nano-

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