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heptagon

1 ENTRIES FOUND:
heptagon /ˈhɛptəˌgɑːn/ noun
plural heptagons
heptagon
/ˈhɛptəˌgɑːn/
noun
plural heptagons
Britannica Dictionary definition of HEPTAGON
[count] mathematics
: a flat shape that has seven sides and seven angles

— heptagonal

/hɛpˈtægənəl/ adjective