rhombus

[rom-buhs]

noun

plural

rhombuses, rhombi 

1. an oblique-angled equilateral parallelogram; any equilateral parallelogram except a square.

2. an equilateral parallelogram, including the square as a special case.

3. a rhombohedron.

rhombus

/ ˈrɒmbəs /

noun

1. Also called: rhomb. an oblique-angled parallelogram having four equal sides Compare square

rhombus

plural

rhombuses 

1. A parallelogram with four equal sides; an equilateral parallelogram.

Word History and Origins

Origin of rhombus¹

First recorded in 1560–70; from Latin, from Greek rhómbos “anything that may be spun around,” derivative of rhémbein “to revolve”

Word History and Origins

Origin of rhombus¹

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

Related Words

• gem 
• jewel 
• rhinestone