The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of a group of enzymes that are present in saliva, pancreatic juice, and parts of plants and catalyze the hydrolysis of starch to sugar to produce carbohydrate derivatives.
n. Any of a class of digestive enzymes, present in saliva, that break down complex carbohydrates such as starch into simpler sugars such as glucose.
The Century Dictionary and Cyclopedia
n. A ferment which will convert starch into dextrose: it occurs widely distributed in both the animal and the vegetable world. Same as diastase or amylolytic ferment.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar
Word Usage
"Alpha-amylase is secreted into saliva by the parotid gland, the largest of the salivary glands."