black hole

noun

Definition of black hole

1 : a celestial object that has a gravitational field so strong that light cannot escape it and that is believed to be created especially in the collapse of a very massive star
2 : something resembling a black hole: such as
a : something that consumes a resource continually a financial black hole
b : an empty space : void … the archives of the past few years are a black hole.— David Herman
c : a dark and seemingly inescapable state or situation the black hole of depression

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Examples of black hole in a Sentence

a psychopath who seemingly has a black hole where his heart should be

Recent Examples on the Web

Meanwhile, the live stream itself, filmed through a peephole-style camera, had viewers joking on Twitter that watching the performance was like viewing it through that infamous donut-like black hole. Christian Allaire, Vogue, "The Need-to-Know Moments From Kanye West’s “Sunday Service” at Coachella," 21 Apr. 2019 And earlier this month, physicists from the LIGO and Virgo collaboration reported four previously unannounced detections of gravitational waves from merging black holes, bringing the total number of detections to 11. Jennifer Ouellette, Ars Technica, "No more doubts: Two independent studies confirm LIGO’s Nobel discovery," 16 Dec. 2018 Everything in the universe needs to radiate heat, and black holes are no exception. Avery Thompson, Popular Mechanics, "Scientists Just Experimentally Proved One of Hawking's Wildest Theories," 23 Jan. 2019 Astronomers use the orbiting observatory to peer deep into the cosmos, revealing faraway solar systems as well as galaxies and black holes. Marcia Dunn, The Seattle Times, "Hubble Space Telescope sidelined by serious pointing failure," 8 Oct. 2018 Neither a neutron star so massive nor a black hole with such a low mass has ever been discovered. Laney Ruckstuhl, BostonGlobe.com, "Cambridge NASA observatory data reveals what is probably lowest-mass black hole ever seen," 7 June 2018 That complex feedback reaches an extreme when gas clouds collapse into glowing stars, stars blow up in supernova explosions, and black holes swallow gas and spew radiation. Adrian Cho, Science | AAAS, "Galaxy simulations are at last matching reality—and producing surprising insights into cosmic evolution," 30 May 2018 The stone is also inscribed with one of Hawking's equations describing the entropy of a black hole. NBC News, "Stephen Hawking's ashes buried in Westminster Abbey," 15 June 2018 The supermassive black hole at the center of that galaxy weighs 6 billion solar masses. John Wenz, Popular Mechanics, "We've Seen a Black Hole Directly for the First Time," 10 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'black hole.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of black hole

1964, in the meaning defined at sense 1

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More Definitions for black hole

black hole

noun

English Language Learners Definition of black hole

: an invisible area in outer space with gravity so strong that light cannot get out of it

black hole

noun

Kids Definition of black hole

: a heavenly body with such strong gravity that light cannot escape it and that is thought to be caused by the collapse of a massive star

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Comments on black hole

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