- hydrolysis [hī dräl′ə sis]n.pl. hydrolyses [hī dräl′isēz΄] [ HYDRO- + -LYSIS]a chemical reaction in which a substance reacts with water so as to be changed into one or more other substances, as a starch into glucose, natural fats into glycerol and fatty acids, or a salt into a weak acid or a weak basehydrolytic [hī΄drō lit′ik]adj.
English World dictionary. V. Neufeldt. 2014.