polyhedron

noun

🔊/ˌpɒliˈhiːdrən/

🔊/ˌpɑːliˈhiːdrən/

(plural polyhedra

🔊/ˌpɒliˈhiːdrə/

🔊/ˌpɑːliˈhiːdrə/

, polyhedrons)

(geometry几何)

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a solid shape with many flat sides, usually more than six多面体（通常多于六面）Topics Colours and Shapesc2
Word Originlate 16th cent.: from Greek poluedron, neuter (used as a noun) of poluedros ‘many-sided’.