London smoke

noun

A neutral tint given to spectacles, shade glasses for optical instruments, etc., which reduces the intensity without materially changing the colour of the transmitted light.

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Meanings

nounLondon smoke (uncountable)
  1. uncountableA neutral tint given to spectacles, shade glasses for optical instruments, etc., which reduces the intensity without materially changing the colour of the transmitted light.
Cite this entry
APA

London smoke. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/London%20smoke

MLA

“London smoke.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/London%20smoke. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “London smoke,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/London%20smoke.

Source: London smoke on Wiktionary, CC BY-SA 4.0.