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icosahedron

[ ahy-koh-suh-hee-druhn, ahy-kos-uh- ]
/ a瑟藢ko蕣 s蓹藞hi dr蓹n, a瑟藢k蓲s 蓹- /
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noun, plural i路co路sa路he路drons, i路co路sa路he路dra [ahy-koh-suh-hee-druh, ahy-kos-uh-]. /a瑟藢ko蕣 s蓹藞hi dr蓹, a瑟藢k蓲s 蓹-/.
a solid figure having 20 faces.
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Origin of icosahedron

1560鈥70; <Greek eikos谩edron, equivalent to eikosa- (variant of eikosi-, combining form of e铆kosi twenty) + -edron-hedron

OTHER WORDS FROM icosahedron

i路co路sa路he路dral, adjective

Words nearby icosahedron

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2022

How to use icosahedron in a sentence

British Dictionary definitions for icosahedron

icosahedron
/ (藢a瑟k蓹s蓹藞hi藧dr蓹n) /

noun plural -drons or -dra (-dr蓹)
a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles

Derived forms of icosahedron

icosahedral, adjective

Word Origin for icosahedron

C16: from Greek eikosaedron, from eikosi twenty + -edron -hedron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for icosahedron

icosahedron
[ 墨-k艒鈥瞫蓹-h膿dr蓹n ]

Plural icosahedrons icosahedra
A polyhedron having twenty faces.

Other words from icosahedron

icosahedral adjective
The American Heritage庐 Science Dictionary Copyright 漏 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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