Examples from the Web for zymogen
During ordinary secretion, however, these granules of zymogen do not entirely disappear from the cell.On Digestive Proteolysis|R. H. Chittenden
Zymogen′ic; Zy′moid, like a ferment; Zymolog′ic, -al, pertaining to zymology.
When in this stage, the compound is known as "proenzyme," or "zymogen."The Chemistry of Plant Life|Roscoe Wilfred Thatcher