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dim-out

or dimout

[dim-out] /ˈdɪmˌaʊt/
noun
1.
a reduction or concealment of night lighting in wartime to make the source less visible to an enemy from the air or sea.
2.
a reduction of night lighting caused by a failure in an electric generating system or a reduction in its output.
Compare blackout (def 2), brownout
Origin of dim-out
1940-1945
1940-45; dim + (black)out
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Historical Examples
  • Along the shore no lights were showing for the dim-out was rigidly enforced at Sunset Beach.

    Voice from the Cave Mildred A. Wirt

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6
7
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