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bro·me·lain(brō′mə-lən, -lān′) also bro·me·lin (-lən)
A proteolytic enzyme obtained from pineapples.
[New Latin Bromel(ia), former pineapple genus; see bromeliad + (pap)ain.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biochemistry) a protein-digesting enzyme (see endopeptidase) found in pineapple and extracted for use in treating joint pain and inflammation, hay fever, and various other conditions
[C19: from Bromelia type genus of pineapple family (see bromeliad) + -in]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014