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icosahedron

i·co·sa·he·dron / īˌkōsəˈhēdrən; īˌkäsə-/ • n. (pl. -drons or -dra / -drə/ ) a solid figure with twenty plane faces, esp. equilateral triangular ones. DERIVATIVES: i·co·sa·he·dral / -drəl/ adj.

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"icosahedron." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 20 Nov. 2017 <http://www.encyclopedia.com>.

"icosahedron." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (November 20, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/icosahedron

"icosahedron." The Oxford Pocket Dictionary of Current English. . Retrieved November 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/icosahedron

icosahedron

icosahedron solid contained by 20 faces. XVI. — Gr. eikosáedron, n. of adj. used sb., f. eíkosi :- *epikosi (rel. to L. vīgintī twenty) + hédrā seat, base (see SIT).

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"icosahedron." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 20 Nov. 2017 <http://www.encyclopedia.com>.

"icosahedron." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (November 20, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/icosahedron-0

"icosahedron." The Concise Oxford Dictionary of English Etymology. . Retrieved November 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/icosahedron-0

icosahedron

icosahedron (īkō´səhē´drən): see polyhedron.

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"icosahedron." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 20 Nov. 2017 <http://www.encyclopedia.com>.

"icosahedron." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (November 20, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/icosahedron

"icosahedron." The Columbia Encyclopedia, 6th ed.. . Retrieved November 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/icosahedron