hy·​per·​fine ˈhī-pər-ˌfīn How to pronounce hyperfine (audio)
: being or relating to a fine-structure multiplet occurring in an atomic spectrum that is due to interaction between electrons and nuclear spin

Word History

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of hyperfine was in 1926

Dictionary Entries Near hyperfine

Cite this Entry

“Hyperfine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperfine. Accessed 30 May. 2023.

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