Webster's Revised Unabridged Dictionary · 1913

Nonagon

Nonagon , noun

[Latin nonus ninth + Greek {not transcribed} angle.]

(Mathematics) A plane figure or polygon having nine sides and nine angles.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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