Definition of "early warning radar" [early warning radar]
Radar based at the boundary of a defended area to detect incoming enemy missiles or aircraft in time to allow deployment of a countermeasure.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "early warning radar" in a sentence
"As they pulled up they rolled into a wingover to the west and strafed what the intelligence people told us might be an early warning radar site in the hills on the northern edge of the valley."
"See also testimony concerning the hours of operation of the US Army’s Hawaiian early warning radar by Colonel Bernard Thielen to the Joint Committee Investigation of the Pearl Harbor Attack, November 15, 1945, PHPT 1, p."