Definition of Anticoagulant

n agent which prevents or retards clotting of blood; a small amount is made in the human body. Uses: (a) to obtain specimens suitable for pathological investigaton and chemical analyses where whole blood or plasma is required instead of serum; the anticoagulant is usually oxalate; (b) to obtain blood suitable for transfusion, the anticoagulant usually being sodium citrate; (c) as a therapeutic agent in treatment of coronary thrombosis, phlebothrombosis (thrombophlebitis), etc., when aspirin should not be given.
Anti-D n anti-Rho, an immunoglobulin, * Rho Gam.