oxacillin

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ox·a·cil·lin

(ŏk′sə-sĭl′ĭn)

A semisynthetic penicillin, C₁₉H₁₉N₃O₅S, that is resistant to penicillinase, used in the form of its sodium salt primarily to treat infections caused by penicillinase-producing staphylococcus bacteria.

[ox(o)- + a(zole) + (peni)cillin.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

oxacillin

(ˌɒksəˈsɪlɪn)

(Medicine) an antibiotic drug containing penicillin

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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Noun

oxacillin - a form of penicillin resistant to penicillinase and effective against penicillin-resistant staphylococci

penicillinase-resistant antibiotic - a form of penicillin that is not rendered inactive by penicillinase

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penicillinase-resistant antibiotic

References in periodicals archive ?

Filamentous forms are seen when gram-negative bacteria are exposed to low concentrations of [Beta]-lactam antibiotics.[1,2] At these concentrations, nuclear division takes place, but actual separation of bacterial cells is prevented due to inhibition of septation.[3] This patient was on oxacillin sodium therapy for a week before he became febrile.