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black hole
1 ENTRIES FOUND:
black hole
(noun)
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black hole
noun
plural
black holes
black hole
noun
plural
black holes
Learner's definition of BLACK HOLE
[
count
]
:
an invisible area in outer space with gravity so strong that light cannot get out of it
—
often used figuratively
The project turned out to be a financial
black hole
. [=something that constantly uses up a large amount of money without producing a good result]
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