Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

rhombus

play
noun rhom·bus \ˈräm-bəs\

Simple Definition of rhombus

  • geometry : a shape with four sides that are equal in length and with four angles that are not always right angles

Source: Merriam-Webster's Learner's Dictionary

Full Definition of rhombus

plural rhombuses or rhombi play \-ˌbī, -ˌbē\

  1. :  a parallelogram with four equal sides and sometimes one with no right angles

Origin of rhombus

Latin, from Greek rhombos piece of wood whirled on a string, lozenge, from rhembein to whirl


First Known Use: circa 1567

Rhymes with rhombus


RHOMBUS Defined for Kids

rhombus

play
noun rhom·bus \ˈräm-bəs\

Definition of rhombus for Students

  1. :  a parallelogram whose sides are equal in length




Learn More about rhombus


Seen and Heard

What made you want to look up rhombus? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a division or portion of a pool or whole

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1926873504

Which of the following best describes an easily irritated person?

tetchy gregarious flashy superficial
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ