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Definition of pepsin noun from the Oxford Advanced Learner's Dictionary

pepsin

noun
 
/ˈpepsɪn/
 
/ˈpepsɪn/
 [uncountable] (biology)
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  1. a substance in the stomach that breaks down proteins in the process of digestionTopics Biologyc2
    Word Originmid 19th cent.: from Greek pepsis ‘digestion’ + -in.
See pepsin in the Oxford Advanced American Dictionary
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Nearby words

trait
noun
 
 
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