First Known Use: 1650
Dictionary
1quadrilateral
noun quad·ri·lat·er·al \ˌkwä-drə-ˈla-t(ə-)rəl\
geometry : a flat shape that has four sides and four angles
Full Definition of QUADRILATERAL
: a polygon of four sides
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Origin of QUADRILATERAL
Latin quadrilaterus four-sided, from quadri- + later-, latus side
2quadrilateral
adjective
Definition of QUADRILATERAL
: having four sides
See quadrilateral defined for kids First Known Use of QUADRILATERAL
1656
QUADRILATERAL Defined for Kids
quadrilateral
noun quad·ri·lat·er·al \ˌkwä-drə-ˈla-tə-rəl\
Definition of QUADRILATERAL for Kids
: a flat geometric figure of four sides and four angles
Medical Dictionary
quadrilateral
adjective quad·ri·lat·er·al \ˌkwäd-rə-ˈlat-ə-rəl, -ˈla-trəl\
Medical Definition of QUADRILATERAL
: having four sides <a quadrilateral muscle>
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