Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to ptyalin: trypsin
A form of amylase in the saliva of humans and certain other animals that catalyzes the hydrolysis of starch into maltose and dextrin.
[Greek ptualon, saliva (from ptūein, to spit) + -in.]
(Biochemistry) biochem an amylase secreted in the saliva of man and other animals
[C19: from Greek ptualon saliva, from ptuein to spit]
pty•a•lin(ˈtaɪ ə lɪn)
an enzyme in the saliva that converts starch into dextrin and maltose.
[1835–45; < Greek ptýal(on) spittle, saliva + -in1]
An enzyme found in saliva that breaks down starches into sugars.
Switch to new thesaurus
|Noun||1.||ptyalin - an amylase secreted in saliva|
saliva, spittle, spit - a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches
amylase - any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar