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Definition of AMBIENT. 1. : an encompassing atmosphere: environment. 2. : music intended to serve as an unobtrusive accompaniment to other activities (as in a public place) and characterized especially by quiet and repetitive instrumental melodies.ull Definition of AMBIENT. : existing or present on all sides: encompassing. See ambient defined for English-language learners. See ambient defined for kids.
the highest concentration of a specific air pollutant at a particular outdoor location, in a specified unit of time, that is not considered hazardous to humans: The ambient air standard for gas X is 3 parts per million per hour. Origin of ambient air standard. 1970-1975.