Definition of papain in English:

papain

Line breaks: pa¦pain
Pronunciation: /pəˈpeɪɪn
 
, pəˈpʌɪɪn
 
/

noun

[mass noun]
  • A protein-digesting enzyme obtained from unripe papaya fruit, used to tenderize meat and as a food supplement to aid digestion.
    More 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.

Origin

late 19th century: from papaya + -in1.

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