n. [ Gr. pty`alon spittle. See Ptyalism. ] (Physiol. Chem.) An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals. [ 1913 Webster ]
n. [ Gr. ptyalismo`s, fr. ptyali`zein to spit much, fr. pty`alon spittle, fr. pty`ein to spit: cf. F. ptyalisme. ] Salivation, or an excessive flow of saliva. Quain. [ 1913 Webster ]