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|Noun||1.||SK-Ampicillin - semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)|
penicillin - any of various antibiotics obtained from Penicillium molds (or produced synthetically) and used in the treatment of various infections and diseases
trademark - a formally registered symbol identifying the manufacturer or distributor of a product
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