Doomsday Clock

proper noun

A symbol in the form of a clock, representing the likelihood of a human-made global catastrophe, in the opinion of the members of the Bulletin of the Atomic Scientists. Its hands are moved backward or forward in response to world events, with midnight representing the onset of catastrophe.

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Meanings

proper nounthe Doomsday Clock
  1. A symbol in the form of a clock, representing the likelihood of a human-made global catastrophe, in the opinion of the members of the Bulletin of the Atomic Scientists. Its hands are moved backward or forward in response to world events, with midnight representing the onset of catastrophe.
Cite this entry
APA

Doomsday Clock. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Doomsday%20Clock

MLA

“Doomsday Clock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Doomsday%20Clock. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “Doomsday Clock,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Doomsday%20Clock.

Source: Doomsday Clock on Wiktionary, CC BY-SA 4.0.