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octahedron

Syllabification: (oc·ta·he·dron)
Pronunciation: /ˌäktəˈhēdrən/

Definition of octahedron

noun (plural octahedrons or octahedra /-drə/)

  • a three-dimensional shape having eight plane faces, especially a regular solid figure with eight equal triangular faces.
  • a body, especially a crystal, in the form of a regular octahedron.

Derivatives

octahedral

Pronunciation: /-drəl/

adjective

Origin:

late 16th century: from Greek oktaedron, neuter (used as a noun) of oktaedros 'eight-faced'

octahedron in other Oxford dictionaries

Definition of octahedron in the British & World English dictionary

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