PENTAHEDRON


Meaning of PENTAHEDRON in English

/ ˌpentəˈhiːdrən; NAmE ; -ˈhed-/ noun

( geometry ) a solid shape with five flat sides

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WORD ORIGIN

late 18th cent.: from penta- five + -hedron , on the pattern of words such as polyhedron .

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