event horizon
event horizon e*vent" ho*ri"zon . (Physics, Astron.) the boundary surface surrounding a {black hole}, from outside of which nothing inside can be observed, because nothing inside that surface, even light, can escape beyond it. See also {black hole} and {escape velocity}. [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • event horizon — n. Astron. the spherical boundary surrounding a black hole, within which there is such strong gravity that nothing, not even light, can escape …   English World dictionary

  • Event horizon — In general relativity, an event horizon is a boundary in spacetime, an area surrounding a black hole or a wormhole, inside which events cannot affect an outside observer. Light emitted from inside the horizon can never reach the observer, and… …   Wikipedia

  • Event Horizon — Filmdaten Deutscher Titel Event Horizon – Am Rande des Universums Originaltitel Event Horizon …   Deutsch Wikipedia

  • event horizon — Astron. the boundary around a black hole on and within which no matter or radiation can escape. [1970 75] * * * Boundary marking the limits of a black hole. At the event horizon, the escape velocity is equal to the speed of light. Since general… …   Universalium

  • Event Horizon — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Event Horizon peut faire référence à : Event Horizon, le vaisseau de l au delà, un film de science fiction britannique ; DreamForge… …   Wikipédia en Français

  • event horizon — n. A major turning point; a point of no return. Example Citation: As we sit on the brink of this event horizon for equity markets, you should ask whether this black hole we are entering will deliver us to a new dimension where bulls run freely,… …   New words

  • Event Horizon —    This is the spherical surface that marks the boundary of a Black Hole. It is created by the massive gravitational forces of a Black Hole, which distort space time. It s possible to pass in through the Event Horizon, but you could never get… …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • event horizon — event′ hori zon n. astron. the boundary around a black hole on and within which no matter or radiation can escape • Etymology: 1970–75 …   From formal English to slang

  • event horizon — noun Date: 1969 the surface of a black hole ; the boundary of a black hole beyond which nothing can escape from within it …   New Collegiate Dictionary

  • event horizon — noun a) The gravitational sphere of a black hole within which the escape velocity is greater than the speed of light, causing time to practically stop. b) A point of no return, by analogy to the astronomical usage …   Wiktionary

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