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1. Transformed from a liquid into a soft semisolid or solid mass
   "curdled milk"
   - coagulate, coagulated, grumous, grumose

1. Turn into curds
   "curdled milk"
   - clabber, clot
    
2. Go bad or sour
   "The milk curdled"
    
3. Turn from a liquid to a solid mass
   "his blood curdled"

See also: curdling, thick

Type of: change state, clot, coagulate, go bad, spoil, turn

Antonym: homogenise [Brit], homogenize

Encyclopedia: Curdle