Definition from Wiktionary, the free dictionary
hydrolysis (plural hydrolyses)
- (chemistry) A chemical process of decomposition involving the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion of water.
- (biochemistry) The degradation of certain biopolymers (proteins, complex sugars) by the chemical process that results in smaller polymers or monomers (such as amino acids or monosaccharides)
Related terms 
a chemical process of decomposition