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

decagon

noun
 
/ˈdekəɡən/
 
/ˈdekəɡɑːn/
 (geometry)
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  1. a flat shape with ten straight sides and ten angles compare decahedronTopics Colours and Shapesc2
    Word Originmid 17th cent.: via medieval Latin from Greek dekagōnon, neuter (used as a noun) of dekagōnos ‘ten-angled’.
See decagon in the Oxford Advanced American Dictionary
Check pronunciation: decagon

Nearby words

flabbergasted
adjective
 
 
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