pentahedron

[ pen-tuh-hee-druhn ]

noun

, plural pen·ta·he·drons, pen·ta·he·dra [pen-t, uh, -, hee, -dr, uh].

1. a solid figure having five faces.

pentahedron

/ ˌpɛntəˈhiːdrən /

noun

1. a solid figure having five plane faces See also polyhedron

Derived Forms

• ˌpentaˈhedral, adjective

Other Words From

• penta·hedral adjective

Word History and Origins

Origin of pentahedron¹

First recorded in 1655–65; penta- + -hedron

Example Sentences

In turn it was a sphere, a disk, a pyramid, a pentahedron, a polyhedron.

From Project Gutenberg

Platonic bodies; cube, rhomboid; tetrahedron, pentahedron, hexahedron, octahedron, dodecahedron, icosahedron, eicosahedron; prism, pyramid; parallelopiped; curb roof, gambrel roof, mansard roof.

From Project Gutenberg