Definition of papain in English:


Pronunciation /pəˈpeɪɪn//pəˈpʌɪɪn/


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

    • ‘Proteolytic enzymes such as papain from papaya and bromelain from pineapple are used in extract form as meat tenderizers.’
    • ‘Take the digestive enzymes bromolain and papain, which, once absorbed, have an anti-inflammatory effect that reduces the body's swelling, pain, tenderness and bruising.’
    • ‘This tropical fruit contains the enzyme papain, which researchers say aids digestion by helping your body break down proteins.’
    • ‘Rich in the protein-breaking enzyme papain, papaya is known to ease digestive complaints and for its anti-ulcer and antimicrobial effects.’
    • ‘Papaya contains the enzyme papain, which is one of the best exfoliators around.’


Late 19th century: from papaya + -in.