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coplanar

[koh-pley-ner] /koʊˈpleɪ nər/
adjective, Mathematics
1.
being or operating in the same plane.
Origin
1860-1865
1860-65; co- + planar < Late Latin plānāris; see plane1, -ar1
Related forms
coplanarity, noun
noncoplanar, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for coplanarity

coplanar

/kəʊˈpleɪnə/
adjective
1.
lying in the same plane: coplanar lines
Derived Forms
coplanarity, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for coplanarity

coplanar

adj.

1862, from co- + planar.

Online Etymology Dictionary, © 2010 Douglas Harper
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