event horizon

noun

: the surface of a black hole : the boundary of a black hole beyond which nothing can escape from within it

Examples of event horizon in a Sentence

Recent Examples on the Web Like the prime meridian, the event horizon is an illusion: a mathematical artifact called a coordinate singularity, which only arises because of the choice of coordinates. —

Steve Nadis, Quanta Magazine, 31 May 2024 The physics of these strongly interacting electrons even seems to mirror some of the ways particles act at the event horizons of black holes. —

Douglas Natelson, Scientific American, 19 Mar. 2024 Some models even map the electron behavior to the physics of event horizons around black holes. —

Douglas Natelson, Scientific American, 19 Mar. 2024 The alternate simulation shows a viewer orbiting close to the event horizon but escaping to safety before ever crossing it. —

Eric Lagatta, USA TODAY, 7 May 2024 See all Example Sentences for event horizon

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'event horizon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1956, in the meaning defined above

Time Traveler

The first known use of event horizon was in 1956

See more words from the same year

Cite this Entry

Style

“Event horizon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/event%20horizon. Accessed 27 Jul. 2024.

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