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pep·sinalso pep·sine (pĕp′sĭn)
1. A digestive enzyme found in gastric juice that catalyzes the breakdown of protein to peptides.
2. A substance containing pepsin, obtained from the stomachs of hogs and calves and used as a digestive aid.
(Biochemistry) a proteolytic enzyme produced in the stomach in the inactive form pepsinogen, which, when activated by acid, splits proteins into peptones
[C19: via German from Greek pepsis, from peptein to digest]
1. an enzyme, produced in the stomach, that in the presence of hydrochloric acid splits proteins into proteoses and peptones.
2. a commercial preparation containing pepsin, obtained from hog stomachs, used chiefly as a digestive and as a ferment in making cheese.
A powerful enzyme that breaks down proteins in the stomach of vertebrate animals.
A protein-digesting enzyme in the stomach.
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|Noun||1.||pepsin - an enzyme produced in the stomach that splits proteins into peptones|
gastric acid, gastric juice - digestive secretions of the stomach glands consisting chiefly of hydrochloric acid and mucin and the enzymes pepsin and rennin and lipase
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions