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Merano
merbromin
Merc
Mercalli scale
mercantile
mercantile system
mercantilism
mercaptan
mercaptobenzthiazole
mercaptopurine
Mercator Projection
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mercenary
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meperidine
me·per·i·dine [ mə pérrə dn ]


noun 
Definition:
 
painkiller: a white crystalline compound. Use: painkiller, sedative. C15H21NO2
[Mid-20th century. Blend of methyl + piperidine]
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