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/ˌæm.pɪˈsɪl.ɪn/ · noun
(pharmacology) A semisynthetic form of penicillin C₁₆H₁₉N₃O₄S that is effective against gram-negative and gram-positive bacteria and is used to treat infections of the urinary, respiratory, and intestinal tracts..
Use ampicillin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Ampicillin means (pharmacology) A semisynthetic form of penicillin C₁₆H₁₉N₃O₄S that is effective against gram-negative and gram-positive bacteria and is used to treat infections of the urinary, respiratory, and intestinal tracts..
Common synonyms include sk-ampicillin.
The opposite depends on the specific sense.
Use ampicillin where its definition matches the intended context.
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