Octahedron meaning

ŏktə-hēdrən
A polyhedron with eight faces.
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A solid figure with eight plane surfaces.
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A polyhedron that has eight faces.
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(geometry) A polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.
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Origin of octahedron

  • Greek oktaedron from neuter of oktaedros having eight sides okta- octo- -edros sided –hedron

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek ὀκτώ (oktō, “eight") + ἕδρα (hedra, “seat").

    From Wiktionary