early warning system

Definition of Early Warning System in English :

1. early warning system

a network of radar installations designed to detect enemy missiles or aircraft while there is still time to intercept them

WordNet Lexical Database for English. Princeton University. 2010.

Early Warning System

noun

1.

a network of radar and communications units intended to detect at the earliest possible moment an attack by enemy aircraft or missiles

2.

anything that gives advance notice of something

n.

1. A network of sensing devices, such as satellites or radar, for detecting an enemy attack in time to take defensive or counteroffensive measures.

2. A system or procedure designed to warn of a potential or an impending problem.