a. [ L. ambiens, p. pr. of ambire to go around; amb- + ire to go. ] Encompassing on all sides; circumfused; investing. “Ambient air.” Milton. “Ambient clouds.” Pope. [ 1913 Webster ]
n. Something that surrounds or invests;
n. The act of surrounding or encompassing. Sir T. Browne. [ 1913 Webster ]
a. [ Pref. circum- + ambient. ] Surrounding; inclosing or being on all sides; encompassing. “The circumambient heaven.” J. Armstrong. [ 1913 Webster ]