curdle
verb
[ ˈkəːd(ə)l ]
• separate or cause to separate into curds or lumps.
• "take care not to let the soup boil or it will curdle"
Similar:
clot,
coagulate,
congeal,
separate into curds/lumps,
solidify,
thicken,
condense,
turn,
turn sour,
sour,
ferment,
Origin:
late 16th century: frequentative of obsolete curd ‘congeal’.