pepsin

or ��·��Ա�

[ pep-sin ]

Phonetic (Standard)IPA

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

/ ˈ��ɛ��ɪ�� /

noun

a proteolytic enzyme produced in the stomach in the inactive form pepsinogen, which, when activated by acid, splits proteins into peptones

pepsin

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

Origin of pepsin¹

1835–45; < Greek ��é�� ( is ) digestion ( pep-, base of ��é��ٱ𾱲� to digest + -sis -sis ) + -in ²

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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

Examples have not been reviewed.

One study showed that drinking water with a pH of 8.8 helped to deactivate pepsin.

From

One study found that alkaline water with a pH of 8.8 deactivates pepsin, a digestive enzyme found in the stomach.

From

Alkaline water can neutralize pepsin’s acidity in the throat, and plant-based proteins tend to produce less pepsin.

From

Among these were that the plant should show a preference for nitrogenous over non-nitrogenous foods, and that the droplets that it secreted should have “some ferment analogous to pepsin”, a digestive enzyme.

From

Gastric glands also produce a chemical called pepsin that breaks down the protein in your diet.

From

pep rally pepsinate

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