pentahedron

[pen-tuh-hee-druhn]

noun

plural

pentahedrons, pentahedra 

1. a solid figure having five faces.

pentahedron

/ ˌpɛntəˈhiːdrən /

noun

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

Other Word Forms

• pentahedral 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.

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

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