
Brownout (aviation)
    
    WordNet
        noun
(1)   Darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
        WiktionaryText
        Noun
-  Temporary dimming of vision, usually with a brown hue and accompanied by loss of peripheral vision or tunnel vision.
- On rising suddenly from her chair she experienced a brownout and had to sit down again quickly.
 
 -  A sustained period of low alternating current line voltage
- When demand for electricty exceeds the available supply, a brownout occurs.
 
 

