plural octahedrons or octahedra\ˌäk-tə-ˈhē-drə \
Definition of octahedron
: a solid bounded by eight plane faces
Illustration of octahedron
Examples of octahedron in a Sentence
Recent Examples on the WebThey are defined by symmetry, and the Greeks knew that there were only five possibilities meeting the criteria: the tetrahedron, cube, octahedron, dodecahedron and icosahedron.
Eugenia Cheng, WSJ, 10 Aug. 2017 Diamonds, which form eight-sided crystals called octahedrons, can be billions of years old, Dr. Harlow said.
C. Claiborne Ray, New York Times, 12 June 2017
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