(used with a singular verb) the science and technology of the development and use of electrical and electronic devices in aviation.
(used with a plural verb) the devices themselves.
Origin of avionics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for avionics
Contemporary Examples of avionics
The introduction of AIMS in the 777 changed the architecture of the avionics on Boeing airliners.MH370 Debris Is Lost Forever, Can the Plane Be Found Without It?
September 7, 2014
(functioning as singular) the science and technology of electronics applied to aeronautics and astronautics
(functioning as plural) the electronic circuits and devices of an aerospace vehicle
Word Origin for avionics
C20: from avi (ation electr) onics
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
Online Etymology Dictionary, © 2010 Douglas Harper