rhombohedron

[ rom-buh-hee-druh n ]
/ ˌrɒm bəˈhi drən /

noun, plural rhom·bo·he·drons, rhom·bo·he·dra [rom-buh-hee-druh] /ˌrɒm bəˈhi drə/.

a solid bounded by six rhombic planes.

Origin of rhombohedron

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

OTHER WORDS FROM rhombohedron

rhom·bo·he·dral, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for rhombohedral

British Dictionary definitions for rhombohedral (1 of 2)

rhombohedral
/ (ˌrɒmbəʊˈhiːdrəl) /

adjective

of or relating to a rhombohedron
crystallog another term for trigonal (def. 2)

British Dictionary definitions for rhombohedral (2 of 2)

rhombohedron
/ (ˌrɒmbəʊˈhiːdrən) /

noun

a six-sided prism whose sides are parallelograms

Word Origin for rhombohedron

C19: from rhombus + -hedron
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

Scientific definitions for rhombohedral (1 of 2)

rhombohedral
[ rŏm′bō-hēdrəl ]

See trigonal.

Scientific definitions for rhombohedral (2 of 2)

rhombohedron
[ rŏm′bō-hēdrən ]

Plural rhombohedrons rhombohedra

A prism with six faces, each a rhombus.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.