Hendecagon

//hɛnˈdɛkəɡ(ə)n// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A polygon with eleven edges and eleven angles.

Synonyms

11 gon 11-gon endecagon undecagon undecagon

Etymology

From hendeca- + -gon.

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