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background radiation Syllabification: back·ground ra·di·a·tion

Definition of background radiation in English:

noun

Astronomy
The uniform microwave radiation remaining from the Big Bang.
Example sentences
  • This microwave interference came to be recognized as cosmic background radiation, a remnant of the Big Bang.
  • We are also exposed to naturally occurring radiation or background radiation.
  • It's called the cosmic background radiation - radiation that originated in that primordial fire ball.

Definition of background radiation in:

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