from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The inactive precursor to pepsin, formed in cells of the mucous membrane of the stomach and converted to pepsin by autocatalysis in the presence of hydrochloric acid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A zymogen that is converted into pepsin by the hydrochloric acid in the stomach.
from the GNU version of the Collaborative International Dictionary of English
- n. A proenzyme, the antecedent of the enzyme pepsin. A substance contained in the form of granules in the peptic cells of the gastric glands. It is readily convertible into pepsin. Also called propepsin.
from The Century Dictionary and Cyclopedia
- n. The inactive mother-substance of pepsin. It is transformed into the latter by the hydrochloric acid of the gastric juice.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. precursor of pepsin; stored in the stomach walls and converted to pepsin by hydrochloric acid in the stomach
Sorry, no etymologies found.