Meaning of AMBIENT in English

I. ˈam-bē-ənt adjective

Etymology: Latin ambient-, ambiens, present participle of ambire to go around, from ambi- + ire to go — more at issue

Date: 1596

: existing or present on all sides : encompassing

II. noun

Date: 1624

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

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.