coplanar

[ koh-pley-ner ]

adjective

, Mathematics.

1. being or operating in the same plane.

coplanar

/ kəʊˈpleɪnə /

adjective

1. lying in the same plane

   coplanar lines

Derived Forms

• ˌcoplaˈnarity, noun

Other Words From

• copla·nari·ty noun
• nonco·planar adjective

Word History and Origins

Origin of coplanar¹

1860–65; co- + planar < Late Latin plānāris; plane ¹, -ar ¹

Example Sentences

Coplanar substitution in four hydrogen atoms would involve the pushing apart of the iodine atoms in four horizontal directions.

From Project Gutenberg

A figure formed by four coplanar points is named a complete quadrangle, or, shorter, a four-point.

From Project Gutenberg

Again, any coplanar system of forces can be replaced by a single force R acting at any assigned point O, together with a couple G.

From Project Gutenberg