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单词 pepsin
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pep•sin  (pep′sin),USA pronunciation n. [Biochem.]
  1. Biochemistryan enzyme, produced in the stomach, that in the presence of hydrochloric acid splits proteins into proteoses and peptones.
  2. Biochemistrya commercial form of this substance, obtained from the stomachs of hogs, used as a digestive, as a ferment in the manufacture of cheese, etc.
Also, pep′sine. 
  • Greek péps(is) digestion (pep-, base of péptein to digest + -sis -sis) + -in2
  • 1835–45

Collins Concise English Dictionary © HarperCollins Publishers::
pepsin, pepsine /ˈpɛpsɪn/ n
  1. a proteolytic enzyme produced in the stomach in the inactive form pepsinogen, which, when activated by acid, splits proteins into peptones
Etymology: 19th Century: via German from Greek pepsis, from peptein to digest
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更新时间：2024/11/11 4:43:49