1. Défaillance, perte de conscience.
2. Disparition inexplicable.
1. A momentary loss of consciousness.
2. Darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft); SYN. brownout, dimout; black-out
Sudden, temporary loss of consciousness caused by reduced blood supply to the brain. It may be due to emotional shock or physical factors, such as pooling of blood in the legs from standing still for long periods.