ˈ ̷ ̷ˌ ̷ ̷ noun
( -s )
Etymology: dim out
: a restriction limiting the use of lighting or the showing of lights at night especially during the threat of an air raid ; also : a condition of partial darkness produced by such restriction
the continuing crisis gradually imposes a dimout on the sources and channels of public information — H.D.Lasswell
— compare blackout