1. Mathematics. the quality of a function that expresses a relationship that is not one of direct proportion.
  2. Electricity. deviation of an input-output relationship from one of direct proportionality.

Origin of nonlinearity

First recorded in 1925–30; non- + linearity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for nonlinearity

Contemporary Examples of nonlinearity