different between deltahedron vs polyhedron

deltahedron

English

Noun

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

  • Not to be confused with the deltohedron, whose faces are kites.

Related terms

  • deltahedral

Anagrams

  • on the ladder

deltahedron From the web:



polyhedron

English

Alternative forms

  • polyedron

Etymology

From New Latin, from Ancient Greek ????????? (polúedron), from ????? (polús, many) + ???? (hédra, seat); compare French polyèdre.

Pronunciation

  • (UK) enPR: p?l?h?'dr?n, IPA(key): /p?li?hi?d??n/

Noun

polyhedron (plural polyhedra or polyhedrons)

  1. (geometry) A solid figure with many flat faces and straight edges.
  2. (optics) A polyscope, or multiplying glass.

Hypernyms

  • abstract polyhedron
  • polytope

Hyponyms

See also Thesaurus:polyhedron

Translations

See also

  • apeirohedron
  • Schläfli symbol
  • spherical polyhedron
  • subpolyhedron
  • tessellation

polyhedron From the web:

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  • what polyhedron has 7 faces
  • what polyhedron has the most faces
  • what polyhedron is a soccer ball
  • what polyhedron can be formed from the net
  • what polyhedron has 10 faces
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