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deltahedron

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English

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Etymology

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From delta (Greek letter) +‎ -hedron referring to the triangular shape of the letter.

Pronunciation

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  • Audio (US):(file)

Noun

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deltahedron (plural deltahedrons or deltahedra)

  1. (geometry) A polyhedron whose faces are all equilateral triangles.
    There are infinitely many deltahedra, but only eight that are convex.

Usage notes

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Anagrams

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