1

quadrilateral

play
noun quad·ri·lat·er·al \ˌkwä-drə-ˈla-t(ə-)rəl\

Definition of quadrilateral

  1. :  a polygon of four sides

Origin and Etymology of quadrilateral

Latin quadrilaterus four-sided, from quadri- + later-, latus side


First Known Use: 1650


2

quadrilateral

adjective quad·ri·lat·er·al

Definition of quadrilateral

  1. :  having four sides

1656

First Known Use of quadrilateral

1656


QUADRILATERAL Defined for English Language Learners

1

quadrilateral

play
noun quad·ri·lat·er·al \ˌkwä-drə-ˈla-t(ə-)rəl\

Definition of quadrilateral for English Language Learners

  • geometry : a flat shape that has four sides and four angles


QUADRILATERAL Defined for Kids

quadrilateral

play
noun quad·ri·lat·er·al \ˌkwä-drə-ˈla-tə-rəl\

Definition of quadrilateral for Students

  1. :  a flat geometric figure of four sides and four angles


Medical Dictionary

quadrilateral

play
adjective quad·ri·lat·er·al \ˌkwäd-rə-ˈlat-ə-rəl, -ˈla-trəl\

Medical Definition of quadrilateral

  1. :  having four sides a quadrilateral muscle



Seen and Heard

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

WORD OF THE DAY

a frightening dream

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • manet-jeanne-spring
  • Which is a synonym of chaffer?
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