from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A form of amylase in the saliva of humans and some animals that catalyzes the hydrolysis of starch into maltose and dextrin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A form of amylase found in saliva that breaks down starch into maltose and dextrin.
from the GNU version of the Collaborative International Dictionary of English
- n. An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals.
from The Century Dictionary and Cyclopedia
- n. The peculiar principle of saliva, believed to be a proteid body, which acts as a ferment on starch, rapidly converting it into dextrose.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an amylase secreted in saliva
Greek ptualon, saliva (from ptūein, to spit) + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)