square-law

[skwair-law]
adjective Electronics.
  1. of or relating to an electronic circuit or device that produces an output voltage proportional to the square of its input voltage over the range of input voltages for which it is designed to function: square-law detector.

Origin of square-law

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018