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penicillin
pen·i·cil·lin [ pènni síllin ]


noun 
Definition:
 
antibiotic derived from mold: an antibiotic belonging to a group originally derived from mold of the genus Penicillium but now produced synthetically. C16H18N2O4S
[Early 20th century. <penicillium]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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