[kur-dl] 
| 1. | to change into curd; coagulate; congeal. |
| 2. | to spoil; turn sour. |
| 3. | to go wrong; turn bad or fail: Their friendship began to curdle as soon as they became business rivals. |
| 4. | curdle the or one's blood, to fill a person with horror or fear; terrify: a scream that curdled the blood. |
dl