constrictor
con.stric.tor \k*n-'strik-t*r\ n 1: one that constricts 2: a muscle that contracts a cavity or orifice or compresses an organ 3: a snake that kills prey by compression in its coils
Webster's English Dictionarycon.stric.tor \k*n-'strik-t*r\ n 1: one that constricts 2: a muscle that contracts a cavity or orifice or compresses an organ 3: a snake that kills prey by compression in its coils