/ ˈheksəgən; NAmE -gɑːn/ noun
( geometry ) a flat shape with six straight sides and six angles
► hex·agon·al / heksˈægənl; NAmE / adjective
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WORD ORIGIN
late 16th cent.: via late Latin from Greek hexagōnon , neuter (used as a noun) of hexagōnos six-angled.