Definition:Pentahedron
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Definition
A pentahedron is a polyhedron which has $5$ faces.
Linguistic Note
The word pentahedron derives from the Classical Greek:
- pente (πέντε), meaning five
- hedron (a form of ἕδρα), meaning base or seat.
The technically correct plural of pentahedron is pentahedra, but the word pentahedrons can often be found.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): pentahedron
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): pentahedron (plural pentahedra)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): pentahedron (plural pentahedra)