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saponification sa·pon·i·fi·ca·tion (sə-pŏn'ə-fĭ-kā'shən)
A reaction in which an ester is heated with an alkali, such as sodium hydroxide, producing a free alcohol and an acid salt, especially alkaline hydrolysis of a fat or an oil to make soap.
saponify sa·pon·i·fy (sə-pŏn'ə-fī')
v. sa·pon·i·fied, sa·pon·i·fy·ing, sa·pon·i·fies
To undergo saponification.