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decahedron

[dek-uh-hee-druh n]
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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.
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for decahedron

decahedron

noun
  1. a solid figure having ten plane facesSee also polyhedron
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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

decahedron

[dĕk′ə-hē′drən]
Plural decahedrons decahedra
  1. A polyhedron having ten faces.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.