Definify.com

Webster 1913 Edition

(?; 277)

Noun.

[Gr.

ἐννέα

nine +

γωνία

corner, angle: cf.

ennéagone

(Geom.)

A polygon or plane figure with nine sides and nine angles; a nonagon.

Noun.

[Gr. nine, an angle.] In geometry, a polygon or figure with nine sides or nine angles.

See also: enneagon

enneàgon m ‎(plural enneàgons)