- being or operating in the same plane.
Origin of coplanar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for coplanar
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.
Coplanar substitution in four hydrogen atoms would involve the pushing apart of the iodine atoms in four horizontal directions.
A figure formed by four coplanar points is named a complete quadrangle, or, shorter, a four-point.
- lying in the same planecoplanar lines
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
Word Origin and History for coplanar
Online Etymology Dictionary, © 2010 Douglas Harper