- Military. a network of radar installations designed to detect enemy aircraft or missiles in time for the effective deployment of defense systems.
- any series of steps established to spot potential problems.
Origin of early-warning system
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
early warning system
- a network of radar and communications units intended to detect at the earliest possible moment an attack by enemy aircraft or missiles
- anything that gives advance notice of something
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