DEW line

[doo, dyoo]

DEW line

[doo, dyoo]
noun
a 3000-mile (4800–km)–long network of radar stations north of the Arctic Circle, maintained by the U.S. and Canada for providing advance warning of the approach of hostile planes, missiles, etc.

Origin:
1955–60; D(istant) E(arly) W(arning)
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Dew line is always a great word to know.
So is quincunx. Does it mean:
a chattering or flighty, light-headed person.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Collins
World English Dictionary
DEW line (djuː)
 
n acronym for
distant early warning line, a network of radar stations situated mainly in Arctic regions to give early warning of aircraft or missile attack on North America

Collins English Dictionary - Complete & Unabridged 10th Edition
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