- hen´de|cag´o|nal
- hen|dec|a|gon «hehn DEHK uh gon», noun.a plane figure having eleven angles and eleven sides.╂[< Greek héndeka eleven (< hén one + déka ten) + -gōnon < gōníā angle]–hen´de|cag´o|nal, adjective.
Useful english dictionary. 2012.