polygon

 
Pronunciation: /ˈpɒlɪg(ə)n/

noun

Geometry
  • a plane figure with at least three straight sides and angles, and typically five or more.

Derivatives

polygonal

Pronunciation: /pəˈlɪg(ə)n(ə)l/
adjective

Origin:

late 16th century: via late Latin from Greek polugōnon, neuter (used as a noun) of polugōnos 'many-angled'