‖ a. (Med.) (a) Capable of causing anesthesia; as, anæsthetic agents. (b) Characterized by, or connected with, anesthesia; as, an anæsthetic effect or operation. [ 1913 Webster + AS ]
‖ AS, n. (Med.) A substance which produces anesthesia, as chloroform, ether, etc. [ 1913 Webster + AS ]