AMBIENT (from Lat. ambi, on both sides, and ire, to go), surrounding; a word implying a moving rather than a stationary encircling. It is used mostly in the phrase the "ambient air," though Bacon applied it as an adjective to the clergy, suggesting "ambition." In astrology it means the sky.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)