hyperfine

H4Y4P3E1R1F4I1N1E1

adjective

Extremely fine, especially of the hyperfine structure in the spectra of atoms and molecules.

Similar
thin
OriginEnglish fine ← Ancient Greek ῠ̔περ- (hŭper-) ← Proto-Hellenic *hupér →
UncommonScrabble 20
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Meanings

adjectivehyperfine (comparative more hyperfine, superlative most hyperfine)

comparative more hyperfine · superlative most hyperfine

  1. Extremely fine, especially of the hyperfine structure in the spectra of atoms and molecules.

Synonyms & antonyms

adjectiveextremely fine or thin, as in a spectral line split into two or more components

Similar
thin

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*úp
  2. Proto-Indo-European*upér
  3. Proto-Hellenic*hupér
  4. Ancient Greekῠ̔πέρ (hŭpér)
  5. Ancient Greekῠ̔περ- (hŭper-)
  6. Englishhyper-
  7. Englishfine
  8. Englishhyperfine

From hyper- + fine.

Full word history & related roots →
Cite this entry
APA

hyperfine. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/hyperfine

MLA

“hyperfine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hyperfine. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “hyperfine,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/hyperfine.

Source: hyperfine on Wiktionary, CC BY-SA 4.0.