Crossword clues for decahedron
The Collaborative International Dictionary
Decahedron \Dec`a*he"dron\, n.; pl. E. Decahedrons, L. Decahedra. [Pref. deca- + Gr. 'e`dra a seat, a base, fr. 'e`zesthai to sit: cf. F. d['e]ca[`e]dre.] (Geom.) A solid figure or body inclosed by ten plane surfaces.
Wiktionary
n. A polyhedron with ten faces.
WordNet
n. any polyhedron having ten plane faces
Wikipedia
In geometry, a decahedron is a polyhedron with ten faces. There are 32300 topologically distinct decahedra and none is regular, so this name is ambiguous.
With regular faces:
- Octagonal prism (uniform 8- prism)
- Square antiprism (uniform 4- antiprism)
- Square cupola ( Johnson solid 4)
- Pentagonal bipyramid (Johnson solid 13, 5- bipyramid)
- Augmented pentagonal prism (Johnson solid 52)
With irregular faces it can also be:
- Pentagonal trapezohedron (5- trapezohedron, antiprism dual) — often used as a die in role playing games, known as d10
- Enneagonal pyramid (9- pyramid)
Usage examples of "decahedron".
The faint glow of hidden tights played over rocks and crystals culled from diverse planetary systems, here reflecting from a blue-green amorphous mineral, there glimmering through a clear yellow decahedron.
The crew pressure vessel was a decahedron of green-anodized aluminum-lithium alloy, with pentagonal viewports of transparent silicon carbide that gave the crew windows that looked ahead, ahead and down, and downward to the left and right.