rhombohedron
[rom-buh-hee-druh n]
- a solid bounded by six rhombic planes.
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Origin of rhombohedron
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for rhombohedral
Historical Examples
The second species, or rhombohedral calamine, is a carbonate of zinc.
Siderite, or spathic iron ore, FeCO3, crystallizes in the rhombohedral system and contains 48.28% of iron.
It was not common carbonate of lime, for the crystals were rhombohedral and did not show the cleavage of calcite.
The Voyage of the Vega round Asia and Europe, Volume I and Volume IIA.E. Nordenskieold
A stereographic projection of a rhombohedral crystal is given in fig. 72.
On the other hand, hexagonal forms may be considered as a combination of two rhombohedral forms.
rhombohedral
- of or relating to a rhombohedron
- crystallog another term for trigonal (def. 2)
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rhombohedron
- a six-sided prism whose sides are parallelograms
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Word Origin
C19: from rhombus + -hedron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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rhombohedral
[rŏm′bō-hē′drəl]
- See trigonal.
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rhombohedron
[rŏm′bō-hē′drən]
- A prism with six faces, each a rhombus.
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.