1

quadrilateral

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

Definition of quadrilateral

  1. :  a polygon of four sides

Recent Examples of quadrilateral from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quadrilateral.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of quadrilateral

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


2

quadrilateral

adjective quad·ri·lat·er·al

Definition of quadrilateral

  1. :  having four sides

Recent Examples of quadrilateral from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quadrilateral.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of quadrilateral

1656


QUADRILATERAL Defined for English Language Learners

quadrilateral

play
noun

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).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to fight against or to call in question

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!