Orbifold

//ˈɔɹ.bɪˌfoʊld// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A topological space in which every small enough neighborhood is homeomorphic to a quotient of real space by the action of a finite group.

Etymology

Blend of orbit + manifold. Named by William Thurston.

Related phrases

topological space

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