Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

black hole

noun

Simple Definition of black hole

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

Full Definition of black hole

  1. 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. 2 :  something resembling a black hole: as a :  something that consumes a resource continually <a financial black hole> b :  an empty space :  void


BLACK HOLE Defined for Kids

black hole

noun

Definition of black hole

  1. :  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





Seen and Heard

What made you want to look up black hole? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 12, 2016

of, relating to, or suggestive of marble

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

2.2 pounds 16.96 pounds 196.5 pounds 100 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ