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noun Penicillamine n. (Chem., Med.) A substance (C5H11NO2S) which is a degradation product of the penicillins. Chemically it is 3-mercapto-D-valine. It has chelating properties and is used in medicine as an antirheumatic and to chelate copper in cases of hepatolenticular degeneration (Wilson's disease).
Collaborative International Dictionary of English 0.48
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