ptyalin
noun
pty·a·lin ˈtī-ə-lən 
: an amylase found in the saliva of many animals that converts starch into sugar
Word History
Etymology
Greek ptyalon saliva, from ptyein to spit — more at spew
First Known Use
1833, in the meaning defined above
Medical Definition
ptyalin
noun
pty·a·lin ˈtī-ə-lən
: an amylase found in the saliva of many animals that converts starch into sugar