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rayleigh

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rayleigh¹

Where it comes from

For Lord Rayleigh, English physicist

noun rayleighs

  1. A unit of brightness (of the sky at night) equal to 10¹⁰/4π quanta per square meter per second per steradian

Rayleigh²

  • /ˈreɪli/

Where it comes from

Of the same origin as Raleigh (which is usually pronounced differently); see Wikipedia at Rayleigh, Essex § Toponymy.

proper noun

  1. A surname.
  2. Lord Rayleigh, English physicist
  3. A town and civil parish with a town council in Rochford district, Essex, England (OS grid ref TQ8090).
  4. A neighbourhood of Kamloops, British Columbia, Canada, named after the English town.

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MLA

"rayleigh." Wiktionary, via Micwyn, micwyn.com/word/rayleigh. Accessed 6 Nov. 2026.

APA

rayleigh. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/rayleigh

Chicago

"rayleigh." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/rayleigh.

BibTeX
@misc{rayleigh_2026,
  title = {rayleigh},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/rayleigh},
  urldate = {2026-11-06}
}