dodecagon

[ doh-dek-uh-gon, -guhn ]

noun

, Geometry.

1. a polygon having 12 angles and 12 sides.

dodecagon

/ dəʊˈdɛkəˌɡɒn; ˌdəʊdɛˈkæɡənəl /

noun

1. a polygon having twelve sides

Derived Forms

• dodecagonal, adjective

Other Words From

• do·de·cag·o·nal [doh-de-, kag, -, uh, -nl], adjective

Word History and Origins

Origin of dodecagon¹

First recorded in 1650–60; dodeca- + -gon