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papain

American  
[puh-pey-in, -pahy-in] / pəˈpeɪ ɪn, -ˈpaɪ ɪn /

noun

  1. Biochemistry. a proteolytic enzyme found in the fruit of the papaya tree, Carica papaya.

  2. Pharmacology. a commercial preparation of this used as a meat tenderizer and in medicine as a digestant.


papain British  
/ pəˈpeɪɪn, -ˈpaɪɪn /

noun

  1. a proteolytic enzyme occurring in the unripe fruit of the papaya tree, Carica papaya: used as a meat tenderizer and in medicine as an aid to protein digestion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of papain

First recorded in 1885–90; papa(ya) + -in 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

For example, pineapple have a protease called bromelain, kiwifruit has actinidin and papaya have papain.

From US News Apr. 27, 2016

One evening, he gave adolescent rabbits intravenous injections of papain.

From Time Magazine Archive

Using a protein-splitting enzyme called papain, Porter broke the antibody molecule into three fragments.

From Time Magazine Archive

If children cried for Castoria in those days, they kicked papain the shins for Buster Brown and his sweetheart, Mary Jane, and his dog, Tige.

From Time Magazine Archive

The natives use the cold infusion of the leaves to wash clothes spotted with blood and the spots disappear rapidly by virtue of the ferment papain which digests the fibrin.

From The Medicinal Plants of the Philippines by Jerome Beers Thomas

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