pentahedron

American

[pen-tuh-hee-druhn] / ˌpɛn təˈhi drən /

noun

a solid figure having five faces.

pentahedron British

/ ˌpɛntəˈhiːdrən /

noun

a solid figure having five plane faces See also polyhedron

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

pentahedral

adjective

Inflected Forms

noun

Etymology

Origin of pentahedron

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Roget's Thesaurus of English Words and Phrases by Roget, Peter Mark

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

From "Where Angels Fear to Tread" and Other Stories of the Sea by Robertson, Morgan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023