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Meaning of curdle

cur•dle

Pronunciation: (kûr'dl), [key]
— -dled, -dling.
  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. to fill a person with horror or fear; terrify: a scream that curdled the blood.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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