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The Collaborative International Dictionary of English v.0.48 (gcide)

Saponification \Sa*pon`i*fi*ca"tion\, n. [Cf. F. saponification.
See {Saponify}.]
The act, process, or result, of soap making; conversion into
soap; specifically (Chem.), the decomposition of fats and
other ethereal salts by alkalies; as, the saponification of
ethyl acetate.
[1913 Webster]


Hydrolysis \Hy*drol"y*sis\, n. [Hydro-, 1 -lysis.] (Chem.)
A chemical process causing the splitting of a chemical bond
by the addition of the elements of water. Where the bond
which is split is not part of a ring structure, this process
causes formation of two compounds from one compound plus
water, as in the hydrolysis of the ester bonds of fats during
{saponification}.
[Webster 1913 Suppl. PJC]

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