Word.ws English Dictionary

bilunabirotunda

bilunabirotunda noun: a polyhedron, one of the Johnson solids, having 8 triangular, 2 square, and 4 pentagonal faces.

bilunabirotunda: a polyhedron, one of the Johnson solids, having 8 triangular, 2 square, and 4 pentagonal faces
Image: Source: en.wikipedia (del) (cur) 04:44, 29 August 2005, CC BY-SA 3.0, via Wikimedia Commons

Noun

bilunabirotunda

  1. A polyhedron, one of the Johnson solids, having 8 triangular, 2 square, and 4 pentagonal faces.
    • ...and investigated the effects of different particle shapes, including sphere, cube, bilunabirotunda, and hexagonal prism.2025, Ajit S. Narang, Sherif I.F. Badawy, Handbook of Pharmaceutical Wet Granulation: Theory and Practice in a Quality by Design Paradigm, page 786

Origin of bilunabirotunda

From bi- + luna + bi- + rotunda. Coined by Norman W. Johnson in 1969.

Questions about bilunabirotunda

What does bilunabirotunda mean?
Bilunabirotunda means a polyhedron, one of the Johnson solids, having 8 triangular, 2 square, and 4 pentagonal faces.
What part of speech is bilunabirotunda?
Bilunabirotunda is a noun.

Words near bilunabirotunda in the dictionary

  1. Biltz
  2. Biltzes
  3. Bilu
  4. Bilucao
  5. Biluchistan
  6. bilunabirotunda
  7. bilunate
  8. bilwa
  9. Bily
  10. Bilyeu
  11. Bilyeus

Source and license

Adapted from Wiktionary: bilunabirotunda (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: “bilunabirotunda.” Word.ws, https://word.ws/bilunabirotunda. Based on Wiktionary, CC BY-SA 4.0.