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rhombus

[ rom-buhs ]
/ ˈrɒm bəs /
Geometry.
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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.

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Origin of rhombus

First recorded in 1560–70; from Latin, from 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. 2022

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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

Scientific definitions for rhombus

rhombus
[ rŏmbəs ]

Plural rhombuses rhombi (rŏm)
A parallelogram with four equal sides; an equilateral parallelogram.

Other words from rhombus

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