hendecagon
noun/henˈdekəɡən/
/henˈdekəɡɑːn/
(geometry)- a flat shape with eleven straight sides and eleven anglesTopics Colours and Shapesc2Word Originearly 18th cent.: from hendeca- ‘eleven’ + -gon, on the pattern of words such as polygon.
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
hendecagon