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background British & World English

The part of a picture, scene, or design that forms a setting for the main figures or objects, or appears furthest from the viewer

background English Thesaurus

the house stands against a background of sheltering trees

background music British & World English

Music intended as an unobtrusive accompaniment to an activity or to provide atmosphere in a film

background noise British & World English

Extraneous sound which can be heard while listening to or monitoring other sounds

background radiation British & World English

The uniform microwave radiation remaining from the Big Bang

microwave background British & World English

A weak uniform microwave radiation which is detectable in nearly every direction of the sky. It is believed to be evidence of the Big Bang