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rhombohedron

American  
[rom-buh-hee-druhn] / ˌrɒm bəˈhi drən /

noun

rhombohedrons, plural rhombohedra plural
  1. a solid bounded by six rhombic planes.


rhombohedron British  
/ ˌrɒmbəʊˈhiːdrən /

noun

  1. a six-sided prism whose sides are parallelograms

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

rhombohedron Scientific  
/ rŏm′bō-hēdrən /
rhombohedrons plural
  1. A prism with six faces, each a rhombus.


Other Word Forms

Etymology

Origin of rhombohedron

1830–40; < Greek rhómbo ( s ) rhombus + -hedron

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The zig-zag lateral edges coincide with the similar edges of a rhombohedron, as shown in fig.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

In calcite, for instance, the figure has roughly the shape of a rounded rhombohedron with depressed faces and is symmetrical about three vertical planes.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

The crystals have the form of a hexagonal prism m terminated by a rhombohedron r, the alternate edges between these being sometimes replaced by the faces of a rhombohedron s.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" by Various

Calcite cleaves in three directions parallel to the faces of the primitive rhombohedron.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

As in the other rhombohedral carbonates, the crystals possess perfect cleavages parallel to the faces of the rhombohedron.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" by Various

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