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icosihenagon

Noun CEFR C1

Definitions

A polygon with twenty-one edges and twenty-one angles.

Equivalents

7 more languages

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
See all C1 English words →

See also

icosihexahedron icosikaidigon icosioctahedron icositetrachoron icositetragon icositetrahedron

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