brownout rown"out n. 1. darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft).

Syn: blackout, dimout. [WordNet 1.5]

2. a partial reduction in the amount of electric power available to customers in a region, such as by reduction of voltage or selective cutoff of certain customers; -- it occurs for example in summer when the demand for electricity for air-conditioning exceeds the supply, or when power to certain customers is cut off by a severe storm. It is contrasted with {blackout}, which is the total loss of electrical power in a region. [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Brownout — may refer to:* Brownout (medical) a dimming of the vision caused by loss of blood pressure or hypoxia (sometimes referred to as a grey out). * Brownout (electricity) drop in voltage in an electrical power supply, so named because it typically… …   Wikipedia

  • Brownout —   [dt. »Ausbräunen«] der, ein vorübergehender Spannungsabfall, der bei Computern und anderen empfindlichen Geräten zu Schäden führen kann. Hinweise auf einen Brownout sind ein kleiner, dunkler und etwas schwankender Anzeigebereich auf dem… …   Universal-Lexikon

  • brownout — UK US /ˈbraʊnaʊt/ noun [C] NATURAL RESOURCES ► a period of time when the electricity supply is not strong enough to supply all the power that is needed: »The cafe was without lights because of a brownout. »Maryland faces potential brownouts… …   Financial and business terms

  • Brownout — (zu Deutsch: „Verminderte Lichtstärke“ bzw. „Abdunkelung“) ist ein aus dem Englischen stammender Begriff und bezeichnet: in Stromversorgungsnetzen einen kurzzeitigen Spannungseinbruch und eine mögliche Vorstufe eines Stromausfalls ein Absinken… …   Deutsch Wikipedia

  • brownout — [broun′out΄] n. a dimming or partial elimination of lights in a city, as during an electric power shortage …   English World dictionary

  • brownout — noun a) 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 …   Wiktionary

  • brownout — UK [ˈbraʊnaʊt] / US [ˈbraʊnˌaʊt] noun [countable] Word forms brownout : singular brownout plural brownouts American a temporary reduction of electric power in an area See: blackout 3) …   English dictionary

  • brownout — n. a reduced level of electrical power. Another brownout? Now I can barely see anything …   English slang

  • brownout — noun Etymology: brown + blackout Date: 1942 a period of reduced voltage of electricity caused especially by high demand and resulting in reduced illumination …   New Collegiate Dictionary

  • brownout — /brown owt /, n. 1. the elimination of some or reduction of all electric lights of a city, esp. as a precaution against attack in time of war. 2. any curtailment of electric power, as by a severe storm. [1940 45; BROWN + OUT, on the model of… …   Universalium

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