Meaning of POLYHEDRON in English

POLYHEDRON

/ ˌpɒliˈhiːdrən; -ˈhed-; NAmE ˌpɑːli-/ noun

( pl. poly·he·dra / -ˈhiːdrə; NAmE ; -ˈhed-/ or poly·he·drons ) ( geometry ) a solid shape with many flat sides, usually more than six

►  poly·he·dral adjective

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WORD ORIGIN

late 16th cent.: from Greek poluedron , neuter (used as a noun) of poluedros many-sided.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.