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pepsin
or pep·sine
[ pep-sin ]
noun
, Biochemistry.
- an enzyme, produced in the stomach, that in the presence of hydrochloric acid splits proteins into proteoses and peptones.
- a commercial form of this substance, obtained from the stomachs of hogs, used as a digestive, as a ferment in the manufacture of cheese, etc.
pepsin
/ ˈpɛpsɪn /
noun
- a proteolytic enzyme produced in the stomach in the inactive form pepsinogen, which, when activated by acid, splits proteins into peptones
pepsin
/ pĕp′sĭn /
- Any of various digestive enzymes found in vertebrate animals that catalyze the hydrolysis of proteins to peptides.
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Word History and Origins
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Word History and Origins
Origin of pepsin1
C19: via German from Greek pepsis, from peptein to digest
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Example Sentences
It is secreted by the gastric glands, and is transformed into pepsin by the action of a free acid.
From Project Gutenberg
Deficiency of rennin has the same significance as deficiency of pepsin, and is more easily recognized.
From Project Gutenberg
Pepsin is rarely or never absent in the presence of free hydrochloric acid.
From Project Gutenberg
Since the two enzyms are almost invariably present or absent together, the test for rennin serves also as a test for pepsin.
From Project Gutenberg
It will be noted that they now make no claim for pepsin, nor do they state that it contains iron in organic form.
From Project Gutenberg
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