noun ·Rare ·Advanced level

Definitions

Noun

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

Etymology

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

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.