| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| icosahedron |
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| SYLLABICATION: | i·co·sa·he·dron |
| PRONUNCIATION: |   -k  s -h  drn, -k s- |
| NOUN: | Inflected forms: pl. i·co·sa·he·drons or i·co·sa·he·dra (-dr)
A polyhedron having 20 faces. | | ETYMOLOGY: | Greek eikosaedron : eikosi, twenty; see wk t in Appendix I + -edron, -hedron. | | OTHER FORMS: | i·cosa·hedral (-drl) —ADJECTIVE
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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