1

quadrilateral

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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

quadrilateral

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noun

Definition of quadrilateral for English Language Learners

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


QUADRILATERAL Defined for Kids

quadrilateral

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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

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

Medical Definition of quadrilateral

  1. :  having four sides a quadrilateral muscle



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