Word.ws English Dictionary

icosaedrum

icosaedrum is the obsolete form of icosahedron.

Meaning of icosahedron

Noun

icosahedron (plural icosahedra or icosahedrons)

  1. A polyhedron with twenty faces.
  2. (specifically) A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles
    Synonyms:
    regular gyroelongated pentagonal bipyramid

Forms of icosaedrum

pluralicosaedra

Questions about icosaedrum

What is icosaedrum the obsolete form of?
Icosaedrum is the obsolete form of icosahedron.

Words near icosaedrum in the dictionary

  1. ICOP
  2. ICOs
  3. icosa-
  4. icosaedric
  5. icosaedron
  6. icosaedrum
  7. icosagen
  8. icosagens
  9. icosagon
  10. icosagonal
  11. icosagons

Source and license

Adapted from Wiktionary: icosaedrum (page history and authors); icosahedron (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “icosaedrum.” Word.ws, https://word.ws/icosaedrum. Based on Wiktionary, CC BY-SA 4.0.