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Related to bromelin: arnica, quercetin
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.]
(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]