Definition:Dodecahedron
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Definition
A dodecahedron is a polyhedron which has $12$ faces.
Regular Dodecahedron
A regular dodecahedron is a dodecahedron whose $12$ faces are all congruent regular pentagons.
Also see
- Results about dodecahedra can be found here.
Linguistic Note
The word dodecahedron derives from the Classical Greek δωδεκάεδρόν:
- dodeca (δωδεκά), meaning twelve
- hedron (a form of ἕδρα), meaning base or seat.
The technically correct plural of dodecahedron is dodecahedra, but the word dodecahedrons can often be found.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): dodecahedron
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): dodecahedron (plural dodecahedra)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): dodecahedron (plural dodecahedra)
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): dodecahedron (dodecahedra)