Definition of black hole in English:

black hole

noun

Astronomy
  • 1A region of space having a gravitational field so intense that no matter or radiation can escape.

    • ‘This universe is very similar to our own, with thousands of stars and galaxies, black holes, comets and meteors each a part in the never-ending celestial dance.’
    • ‘I can only assume, based on our limited understanding of space and time, that the intense gravity of the black hole caused the spacecraft to be thrust back in time.’
    • ‘Some of the invisible dark matter that is missing from the Universe may be massive dark bodies such as planets, black holes, asteroids or failed stars.’
    • ‘The gravitational field of a black hole is so strong that the escape velocity needed is greater than the speed of light.’
    • ‘An astronomy satellite that studied black holes and distant galaxies was wiped out by the one star that it did not watch.’
    1. 1.1informal A place where people or things, especially money, disappear without trace.
      ‘the moribund economy has been a black hole for federal funds’
      ‘juveniles lost for good in the black hole of the criminal justice system’
      • ‘Publicly owned cars are a very big financial black hole in the country, producing waste and corruption.’
      • ‘They disappear into the black hole existing somewhere in the core of my house.’
      • ‘The economics of nuclear energy are insane - it's the most expensive way of generating electricity, a gigantic black hole sucking in taxpayers' money.’
      • ‘Apparently he would like them to disappear into a black hole somewhere.’
      • ‘But if you can't sell it, then you haven't got any money, what you've got is a big black hole of expense.’
      • ‘There is plenty of potential - the telecom's £2.5bn black hole alone is the equivalent to the value of a large UK company.’
      • ‘How many times have you sent an e-mail to a company, only to have that e-mail apparently fall into a black hole?’
      • ‘The first disappeared into the great black hole of cyberspace.’
      • ‘The single biggest problem with the privatisation programme is that the proceeds disappear into a black hole called the Consolidated Fund of India.’
      • ‘They claim that all this extra cash has somehow disappeared into a black hole so massive that even Stephen Hawking could not comprehend it.’
      • ‘But in today's changing world, where today's Internet success can easily become tomorrow's black hole, it pays to have partners and spread the risk.’
      • ‘Are these savvy businessfolk simply throwing their money into a black hole?’
      • ‘It's like a big black hole, the money disappears.’
      • ‘Critics predicted that, without radical change to make the service more accountable, the money would disappear into a black hole.’
      • ‘Some sites we have looked at during the last few years have disappeared into the black hole of Cyberspace.’
      • ‘Dotcoms continue to disappear into the Nasdaq black hole in hot pursuit of the latest startups.’
      • ‘He adopted all these ruinous procedures and a very large percentage of what he thus raised went straight into his financial black hole.’
      • ‘But the critics assume that Quebecers get nothing in exchange for their tax dollars, that this money is somehow dumped into a great bureaucratic black hole.’
      • ‘Due to the ephemeral nature of the medium, web content often disappears into a black hole.’
      • ‘The company's finances are formally a black hole, although great hopes rest on the imminent IPO reviving the tech sector.’
      underground cell, underground prison, oubliette
      View synonyms

Pronunciation

black hole

/ˈˌblak ˈhōl//ˈˌblæk ˈhoʊl/