| antiarrhythmic | (n) a drug used to treat an abnormal heart rhythm, Syn. antiarrhythmic medication, antiarrhythmic drug |
| Antiar | n. [ Jav. antjar. ] A Virulent poison prepared in Java from the gum resin of one species of the upas tree (Antiaris toxicaria). [ 1913 Webster ] |
| Antiarin | n. (Chem.) A poisonous principle obtained from antiar. Watts. [ 1913 Webster ] |