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1. Become converted into soap by being hydrolyzed into an acid and alcohol as a result of being treated with an alkali
   "the oil saponified"
    
2. Convert into soap by hydrolizing an ester into an acid and alcohol as a result of treating it with an alkali
   "saponify oils and fats"

Derived forms: saponified, saponifies, saponifying

See also: saponification, saponified, soap, unsaponified

Type of: alter, change, modify