definitions

rhombus

[ rom-buh s ]
/ ˈrɒm bəs /
|
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noun, plural rhom·bus·es, rhom·bi [rom-bahy] /ˈrɒm baɪ/.

an oblique-angled equilateral parallelogram; any equilateral parallelogram except a square.
an equilateral parallelogram, including the square as a special case.
a rhombohedron.

RELATED WORDS

jewel, gem, rhinestone, square, rectangle, parallelogram, quadrilateral, paragon, ice, lozenge, rock, zircon, corundum, allotrope, solitaire, brilliant, bort, jager

Nearby words

rhomboid, rhomboid fossa, rhomboid ligament, rhomboidal sinus, rhomboideus, rhombus, rhonchal fremitus, rhonchial, rhonchus, rhonda, rhondda

Origin of rhombus

1560–70; < Latin < Greek rhómbos anything that may be spun around, derivative of rhémbein to revolve
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rhombus

British Dictionary definitions for rhombus

rhombus

/ (ˈrɒmbəs) /

noun plural -buses or -bi (-baɪ)

an oblique-angled parallelogram having four equal sidesAlso called: rhomb Compare square (def. 1)

Word Origin for rhombus

C16: from Greek rhombos something that spins; related to rhembein to whirl
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

Science definitions for rhombus

rhombus

[ rŏm′bəs ]

Plural rhombuses rhombi (rŏm′bī)

A parallelogram with four equal sides; an equilateral parallelogram.

Related forms

rhomboid, rhomboidal adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.