quandle

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noun

A rack, scriptstyle Q,, such that scriptstyle ∀a;∈;Q a triangleright a=a or equivalently a triangleleft a=a.

Scrabble 17
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Meanings

nounquandle (plural quandles)

plural quandles

  1. mathematicsA rack, scriptstyle Q,, such that scriptstyle ∀a;∈;Q a triangleright a=a or equivalently a triangleleft a=a.

Origin

Coined by David Joyce in his 1982 paper A classifying invariant of knots: the knot quandle.

Full word history & related roots →

Translations

German Quandle
  • QuandleTranslations
Cite this entry
APA

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

MLA

“quandle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quandle. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “quandle,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/quandle.

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