ANS n 1: the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands [syn: {autonomic nervous system}, {ANS}]
American National Standard ANS <standard> (ANS) A common prefix for {ANSI} documents or standards, e.g.: "ANS {Forth}", or "American National Standard X3.215-1994". (1998-07-01)
ANS Advanced Network & Services Inc. (IBM, MCI. Merit, NFSnet)
ANS American National Standard (ANSI, ISO, USA)