You searched for: “lysozymes
lysozyme (s) (noun), lysozymes (pl)
An enzyme of the hydrolase class that catalyzes the hydrolysis of specific glycosidic linkages in peptidoglycans and in chitin: The lysozyme occurs in saliva, tears, egg white, and many animal fluids and catalyzes the breakdown of some bacterial cell walls.

The lysozymes exist naturally in egg white, human tears, saliva, and other body fluids, and it is capable of destroying the cell walls of certain bacteria and thereby acts as a mild antiseptic.