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amplify
amplitude
amplitude modulation
amply
ampoule
ampulla
amputate
amputee
amrita
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ampicillin
am·pi·cil·lin [ àmpə síllin ]


noun 
Definition:
 
form of penicillin: a semisynthetic form of penicillin. Use: treatment of respiratory infections.
[Mid-20th century. <amino- + -cillin, INN stem]
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