meaning of curdle
1.  To change into curd; to coagulate; as, rennet causes milk to curdle. 
2.  To thicken; to congeal. 
3.  To change into curd; to cause to coagulate. 
4.  To congeal or thicken. 
5.  turn from a liquid to a solid mass; "his blood 
						">curdled"
						 
