pol·y·he·dron
noun/ˌpɒliˈhiːdrən/
/ˌpɑːliˈhiːdrən/
(plural polyhedra
(geometry)/ˌpɒliˈhiːdrə/
/ˌpɑːliˈhiːdrə/
, polyhedrons)- a solid shape with many flat sides, usually more than six
多面体（通常多于六面） Word Originlate 16th cent.: from Greek poluedron, neuter (used as a noun) of poluedros ‘many-sided’.