red alert: Meaning and Definition of
red' alert'
- (in military or civilian defense) the most urgent form of alert, signaling that an enemy attack is believed to be imminent.
- the signal or alarm sounded for this alert. Cf.
- a signal or warning that a critical situation is developing or has occurred.
- the period during which a state of crisis or danger is declared to exist.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.