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Definition of heptagon noun from the Oxford Advanced Learner's Dictionary

heptagon

noun
 
/ˈheptəɡən/
 
/ˈheptəɡɑːn/
 (geometry)
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  1. a flat shape with seven straight sides and seven anglesTopics Colours and Shapesc2
    Word Originlate 16th cent.: from Greek heptagonon, neuter (used as a noun) of heptagonos ‘seven-angled’.
See heptagon in the Oxford Advanced American Dictionary
Check pronunciation: heptagon

Nearby words

trait
noun
 
 
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