Definition of papain in English:

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Pronunciation: /pəˈpā(ə)n/ Pronunciation: /pəˈpē(ə)n/


A protein-digesting enzyme obtained from unripe papaya fruit, used to tenderize meat and as a food supplement to aid digestion.
Example sentences
  • Rich in the protein-breaking enzyme papain, papaya is known to ease digestive complaints and for its anti-ulcer and antimicrobial effects.
  • Proteolytic enzymes such as papain from papaya and bromelain from pineapple are used in extract form as meat tenderizers.
  • This tropical fruit contains the enzyme papain, which researchers say aids digestion by helping your body break down proteins.


Late 19th century: from papaya + -in1.

For editors and proofreaders

Syllabification: pa·pa·in

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