black hole

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Noun

Singular black hole

Plural black holes

1. (countable) A black hole is a round invisible astronomical body with no solid surface and is compact enough to attract light and swallow it. That's why it remains usually invisible.

   Certain stars form a couple with a black hole, turning around each other : the matter of the star is progressively swallowed by the black hole.

Related words

• star
• astrophysics
• light
• wormhole
• white hole