Medical Dictionary

black out

vi \(ˈ)blak-ˈat\

Medical Definition of BLACK OUT

:  to undergo a temporary loss of vision, consciousness, or memory (as from temporary impairment of cerebral circulation, retinal anoxia, a traumatic emotional blow, or an alcoholic binge)—compare gray out, red out
transitive verb
:  to cause to black out
July 04, 2015
stringent Hear it
rigorous, strict, or severe
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