octohedron

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English

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Noun

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octohedron (plural octohedra or octohedrons)

  1. Alternative form of octahedron
    • 1795, J[ohann] G[ottfried] Schmeisser, “Zinc”, in A System of Mineralogy, Formed Chiefly on the Plan of Cronstedt, volume II, London: […] C. Dilly […], page 199:
      Its primitive figure ſeems to be the regular tetrahedron, which is variouſly modified by truncation, making it appear as octohedrons or hex-octohedrons.
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