curdle
1. [ verb ] go bad or sour
Examples:

"The milk curdled"

Related terms: spoil curdling
2. [ verb ] turn into curds, as of dairy products
Synonyms: clot clabber
Examples:

"curdled milk"

Related terms: homogenize homogenize change_state curdling
3. [ verb ] turn from a liquid to a solid mass
Examples:

"his blood curdled"

Related terms: clot curdling
Similar spelling:   curdled
  curdling
  Cordle