enneagon

See also: enneàgon

English

A regular enneagon

Etymology

From ennea- +‎ -gon.

Pronunciation

• (UK) IPA^(key): /ˈɛ.niː.ə.ɡən/

Noun

enneagon (plural enneagons)

1. (geometry) A polygon with nine sides; a nonagon.

Usage notes

• While enneagon is etymologically consistent with pentagon, hexagon, etc., in that it uses a Greek prefix and suffix as opposed to a Latin prefix and a Greek suffix, its use is rare; nonagon is the more common term.

Synonyms

• 9-gon
• nonagon
• nonangle

Related terms

• enneagonal

Translations

a polygon with nine sides; a nonagon

• Catalan: enneàgon m
• Finnish: yhdeksänkulmio (fi)
• French: ennéagone (fr) m
• Galician: enneágono (gl) m
• German: Neuneck (de) n
• Greek: εννεάγωνο (el) (enneágono)
• Hebrew: מתושע m (metushá)
• Japanese: 九角形 (kyūkakukei)
• Korean: 구각형 (ko) (gugakhyeong)
• Polish: dziewięciokąt (pl) m, dziewięciobok m
• Russian: девятиугольник (ru) m (devjatiugolʹnik)
• Spanish: eneágono (es) m
• Ukrainian: please add this translation if you can

Further reading

• enneagon on Wikipedia.Wikipedia