dim-out

American  

[dim-out] / ˈdɪmˌaʊt /

Or dimout

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.

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Etymology

Origin of dim-out

First recorded in 1940–45; dim + (black)out

Example Sentences

Ann dialed a small wrist radio; in a few moments, out of the dark sky, the dim-out lights of a small 'copter came into view, and the machine settled delicately to the road.

From Infinite Intruder by Nourse, Alan Edward

Tramping down the ravine toward the huge house, he saw it was dark; down by the gate he could see the Security Guard, standing in a haze of blue cigarette smoke under the dim-out lights.

From Bear Trap by Nourse, Alan Edward

Along the shore no lights were showing for the dim-out was rigidly enforced at Sunset Beach.

From Voice from the Cave by Wirt, Mildred A. (Mildred Augustine)