zymogenesis (?za?m???d??n?s?s) n (Biochemistry) biochem the conversion of a zymogen into an enzymeCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014zymogenesisthe process in which a zymogen becomes an enzyme, as in the fermentation process. ? zymogenic, zymogenous, adj.See also: Biologythe process in which a zymogen becomes an enzyme, as in the fermentation process. ? zymogenic, zymogenous, adj.See also: Fermentation-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.