'Nonagon' definitions:
Definition of '
nonagon
'
From:
WordNet
noun
A nine-sided polygon
Definition of '
Nonagon
'
From:
GCIDE
Nonagon \Non"a*gon\, n. [L. nonus ninth + Gr. ? angle.] (Math.) A plane figure or polygon having nine sides and nine angles. [1913 Webster]
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