Meaning Of The Word Dark matter

Real Dictionary

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Dark matter Meaning

Dark matter Definition
Dark matter Definition

What's The Definition Of Dark matter?

dark matter
uncountable noun: Dark matter is material that is believed to form a large part of the universe, but which has never been seen.

dark matter in American English
invisible matter whose existence is postulated by astrophysicists to account for the large amount of observed gravitation that cannot be accounted for by visible matter
noun: a hypothetical form of matter invisible to electromagnetic radiation, postulated to account for gravitational forces observed in the universe

dark matter in British English
noun: matter known to make up perhaps 90% of the mass of the universe, but not detectable by its absorption or emission of electromagnetic radiation

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