femtovolt

F4E1M3T1O1V4O1L1T1

noun

One quadrillionth (10⁻¹⁵) of a volt.

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Meanings

nounfemtovolt (plural femtovolts)

plural femtovolts

  1. One quadrillionth (10⁻¹⁵) of a volt.

    Quantum fluctuations in superconductors created fluctuations that we could measure at a few femtovolts electrically, or magnetically at <10⁻¹⁵ Wb, or by temperature shifts of a few microKelvin.

    2001, Rudolf Rigler, Elliot S. Elson, Fluorescence Correlation Spectroscopy: Theory and Applications, Berlin, Heidelberg: Springer, page 306

Origin

From femto + volt.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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