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polyhedron

Syllabification: (pol·y·he·dron)
Pronunciation: /ˌpäliˈhēdrən/
Definition of polyhedron

noun (plural polyhedrons or polyhedra /-ˈhēdrə/)

Geometry
  • a solid figure with many plane faces, typically more than six.

Derivatives

polyhedral

Pronunciation: /-ˈhēdrəl/
adjective

polyhedric

Pronunciation: /-ˈhēdrik/
adjective

Origin:

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

polyhedron in other Oxford dictionaries

Definition of polyhedron in the British & World English dictionary
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