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trapezohedron

[truh-pee-zuh-hee-druh n, trap-uh-] /trəˌpi zəˈhi drən, ˌtræp ə-/
noun, plural trapezohedrons, trapezohedra
[truh-pee-zuh-hee-druh, trap-uh-] /trəˌpi zəˈhi drə, ˌtræp ə-/ (Show IPA)
1.
Crystallography. a crystal form having all faces trapeziums.
2.
Geometry. a trapezoid trisoctahedron.
Origin
1810-1820
1810-20; trapez(oid) + -o + -hedron
Related forms
trapezohedral, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for trapezohedra

trapezohedron

/trəˌpiːzəʊˈhiːdrən/
noun (pl) -drons, -dra (-drə)
1.
(crystallog) a crystal form in which all the crystal's faces are trapeziums
Derived Forms
trapezohedral, adjective
Word Origin
C19: from trapezo- combining form of trapezium + -hedron, on the model of tetrahedron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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