Henagon

//ˈhɛnəɡɒn// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A polygon having one edge and one angle.

Synonyms

All synonyms
monogonmonogon

Etymology

From Ancient Greek: εἷς (heîs, “one”, accusative héna) + -gon.

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