D defs.my
Entry 1 sense Webster, 1913

ptyalin

/(tī"ȧ*lĭn)/ · pty·a·lin · IPA
01 n. An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals.
  1. 1.
    An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals.(Physiol. Chem.)