octagon noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of octagon noun from the Oxford Advanced American Dictionary

octagon

noun

NAmE//ˈɑktəˌɡɑn//

(geometry)

a flat shape with eight straight sides and eight angles

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octagonal

NAmE//ɑkˈtæɡənl//

adjective an octagonal coinSee octagon in the Oxford Advanced Learner's Dictionary

Check pronunciation: octagon