[dek-uh-hee-druh n]
noun, plural dec·a·he·drons, dec·a·he·dra [dek-uh-hee-druh] /ˌdɛk əˈhi drə/. Geometry.
  1. a solid figure having ten faces.

Origin of decahedron

From New Latin, dating back to 1820–30; see origin at deca-, -hedron
Related formsdec·a·he·dral [dek-uh-hee-druh l] /ˌdɛk əˈhi drəl/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for decahedron


  1. a solid figure having ten plane facesSee also polyhedron
Derived Formsdecahedral, adjective
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

decahedron in Science


Plural decahedrons decahedra
  1. A polyhedron having ten faces.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.