adjective Physical Chemistry.

containing no permanently dipolar molecules; lacking a dipole.

Origin of nonpolar

First recorded in 1890–95; non- + polar Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for non-polar

Historical Examples of non-polar

Word Origin and History for non-polar

also nonpolar, 1892, from non- + polar.

Online Etymology Dictionary, © 2010 Douglas Harper