HEPTAGON Meaning of HEPTAGON in English transcription, транскрипция: [ ˈheptəɡən ]n. a plane figure with seven sides and angles. øøheptagonal adj. [F heptagone or med.L heptagonum f. Gk (as HEPTA-, -GON)] English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012