noun Etymology: Greek dōdekagōnon, from dōdeka- + -gōnon -gon Date: circa 1658 a polygon of 12 angles and 12 sides
DODECAGON
Meaning of DODECAGON in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012