ceph·​a·​lo·​spo·​rin | \ ˌse-fə-lə-ˈspȯr-ən How to pronounce cephalosporin (audio) \

Definition of cephalosporin

: any of several antibiotics produced by an imperfect fungus (genus Acremonium synonym Cephalosporium)

Examples of cephalosporin in a Sentence

Recent Examples on the Web

Subsequent to the transplant, the patients developed invasive infections from an E. coli strain that was resistant to a wide variety of antibiotics in the penicillin and cephalosporin groups. Beth Mole, Ars Technica, "One dead after poop transplant gone wrong, FDA warns," 14 June 2019 Yet, while there are many cephalosporins, only a handful have been reported to cause this reaction. Richard Klasco, New York Times, "Can I Drink Alcohol While Taking Antibiotics?," 15 June 2018 Most of these are cephalosporins, a class of broad-spectrum antibiotics that are used to treat a variety of infections. Richard Klasco, New York Times, "Can I Drink Alcohol While Taking Antibiotics?," 15 June 2018 In some cases, the results and your personal sensitivities to certain antibiotics like penicillin or cephalosporin may indicate that nitrofurantoin or trimethoprim-sulfamethoxazole are the best way to go. Korin Miller, SELF, "Here’s What You Need to Know About Treating a UTI While Pregnant," 18 Jan. 2018 The bacteria produce an enzyme called Klebsiella pneumoniae carbapenemase that makes a range of antibiotics ineffective, including beta-lactams, penicillins, and cephalosporins. NBC News, "What Is CRE and Why Do People Catch it?," 6 Feb. 2018 Penicillins, erythromycin, and cephalosporins may be better options. Korin Miller, SELF, "Here’s What You Need to Know About Treating a UTI While Pregnant," 18 Jan. 2018 Some strains have built up resistance to all but one treatment: an injection of an extended-spectrum cephalosporin paired with an oral form of azithromycin. Aneri Pattani, New York Times, "A Dangerous, ‘Silent Reservoir’ for Gonorrhea: The Throat," 31 July 2017 For instance, key takeaways include: 66 percent of reporting countries saw at least one case of gonorrhea with some level of resistance to cephalosporin antibiotics in that time frame. Beth Mole, Ars Technica, "Incurable gonorrhea is lurking—and we may not see it coming, WHO warns," 9 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cephalosporin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cephalosporin

1951, in the meaning defined above

History and Etymology for cephalosporin

New Latin Cephalosporium, genus of fungi + -in entry 1

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Last Updated

21 Jun 2019

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The first known use of cephalosporin was in 1951

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ceph·​a·​lo·​spo·​rin | \ ˌsef-ə-lə-ˈspōr-ən, -ˈspȯr- How to pronounce cephalosporin (audio) \

Medical Definition of cephalosporin

: any of several beta-lactam antibiotics produced by an imperfect fungus of the genus Acremonium or made semisynthetically

More from Merriam-Webster on cephalosporin

Britannica.com: Encyclopedia article about cephalosporin

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