The special atmosphere or mood created by a particular environment: The noir ambience is dominated by low-key lighting . . . and deep shadows, creating feelings of disorientation, loneliness and entrapment (UCLA Film/TV Archive, http://www.cinema.ucla.edu/arsc/filmtxt/filmnoir.htm October 25, 1996).
ETYMOLOGY:
French, from ambiant, surrounding, from Latin ambins, ambient-. See ambient.