cosmic microwave radiation


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Related to cosmic microwave radiation: cosmic background radiation

cosmic microwave radiation

[′käz·mik ′mī·krō‚wāv ‚rād·ē′ā·shən]
(astronomy)
A nearly uniform flux of microwave radiation that is believed to permeate all of space and to have originated in the big bang. Also known as cosmic background radiation; cosmic microwave background; microwave background.