Word.ws English Dictionary

enneadecahedron

enneadecahedron noun: a polyhedron with nineteen faces.

Noun

enneadecahedron (plural enneadecahedra or enneadecahedrons)

  1. (rare) A polyhedron with nineteen faces.
    • Guy [24] and Knowlton have independently discovered a uniform unistable enneadecahedron.1970, Research Paper, page 22
    • Klamkin noted that [1] contains an improved solution by R.K. Guy to the polyhedron problem, consisting of a doubly truncated 17-sided convex prism, making it an enneadecahedron (19 faces). […] Ogilvy referred to his book [4], where he describes Guy's enneadecahedron.1980, Crux Mathematicorum, pages 28, 29

Forms of enneadecahedron

pluralenneadecahedra
pluralenneadecahedrons

Origin of enneadecahedron

From enneadeca- + -hedron.

Questions about enneadecahedron

What does enneadecahedron mean?
Enneadecahedron means a polyhedron with nineteen faces.
What part of speech is enneadecahedron?
Enneadecahedron is a noun.
What is the plural of enneadecahedron?
The plural of enneadecahedron is enneadecahedra.

Words near enneadecahedron in the dictionary

  1. enneadeca-
  2. enneadecaeteris
  3. enneadecagon
  4. enneadecagons
  5. enneadecahedra
  6. enneadecahedron
  7. enneadecahedrons
  8. enneadecaphobia
  9. enneadic
  10. enneads
  11. enneagon

Source and license

Adapted from Wiktionary: enneadecahedron (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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