English

Definition of polyhedron noun from the Oxford Advanced Learner's Dictionary

 

polyhedron

 noun
noun
BrE BrE//ˌpɒliˈhiːdrən//
 
; NAmE NAmE//ˌpɑːliˈhiːdrən//
 
; BrE BrE//ˌpɒliˈhedrən//
 
; NAmE NAmE//ˌpɑːliˈhedrən//
 
(pl. polyhedra
BrE BrE//ˌpɒliˈhiːdrə//
 
; NAmE NAmE//ˌpɑːliˈhiːdrə//
 
; BrE BrE//ˌpɒliˈhed//
 
; NAmE NAmE//ˌpɑːliˈhed//
 
, polyhedrons)
(geometry)
 
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a solid shape with many flat sides, usually more than six Word Origin late 16th cent.: from Greek poluedron, neuter (used as a noun) of poluedros ‘many-sided’.
See the Oxford Advanced American Dictionary entry: polyhedron