femtocoulomb

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noun

An SI unit of electric charge equal to 10⁻¹⁵ coulombs. Symbol: f

Similar
fC
OriginEnglish coulomb ← Danish femten ← Old Norse fimmtán →
Scrabble 23
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Meanings

nounfemtocoulomb (plural femtocoulombs)

plural femtocoulombs

  1. metrologyAn SI unit of electric charge equal to 10⁻¹⁵ coulombs. Symbol: f

    Synonyms: fC

Synonyms & antonyms

nounAn SI unit of electric charge equal to 10⁻¹⁵ coulombs. Symbol: f

Similar
fC

Origin

  1. Proto-Indo-European*pénkʷe
  2. Proto-Germanic*fimf
  3. Proto-Indo-European*déḱm̥
  4. Proto-Germanic*tehun
  5. Proto-Germanic*fimftehun
  6. Old Norsefimmtán
  7. Danishfemten
  8. Englishfemto-
  9. Englishcoulomb
  10. Englishfemtocoulomb

From femto- + coulomb.

Full word history & related roots →
Cite this entry
APA

femtocoulomb. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/femtocoulomb

MLA

“femtocoulomb.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/femtocoulomb. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “femtocoulomb,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/femtocoulomb.

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