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piperacillin

[pahy-per-uh-sil-in] /paɪˌpɛr əˈsɪl ɪn/
noun, Pharmacology
1.
a broad-spectrum semisynthetic penicillin, C 2 3 H 2 6 N 5 NaO 7 , used against certain susceptible Gram-positive and Gram-negative bacteria and certain anaerobes, especially P. aeruginosa.
Origin
pipera(zinyl), a component of its chemical name (see piperazine, -yl) + -cillin, as in penicillin
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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