fresnel

F4R1E1S1N1E1L1

noun

A unit of frequency equal to 10¹² hertz, or one terahertz.

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Meanings

fresnel1

nounfresnel (plural fresnels)

plural fresnels

  1. natural sciencesA unit of frequency equal to 10¹² hertz, or one terahertz.
  2. A Fresnel lens or a light feature using such a lens

Fresnel2

proper nounFresnel (plural Fresnels)

plural Fresnels

  1. A surname from French, notably held by Augustin-Jean Fresnel.

Origin

For Augustin-Jean Fresnel, French physicist.

Full word history & related roots →

Rhymes & wordplay

Anagrams

flenserFlesner
Cite this entry
APA

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

MLA

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

Chicago

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

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