vancomycin

noun
van·​co·​my·​cin | \ ˌvaŋ-kə-ˈmī-sᵊn How to pronounce vancomycin (audio) \

Definition of vancomycin

: an antibiotic C66H75Cl2N9O24 derived from an actinomycete (Amycolatopsis orientalis synonym Streptomyces orientalis) that is effective against gram-positive bacteria and is used chiefly in the form of its hydrochloride C66H75Cl2N9O24·HCl especially against staphylococci resistant to methicillin

Examples of vancomycin in a Sentence

Recent Examples on the Web Then, from day eight to day 14, vancomycin was replaced with daptomycin. Karen Weintraub, Scientific American, "Combining Multiple Antibiotics May Make Bacteria More Likely to Develop Resistance," 9 Jan. 2020 When the team tested bacteria taken from the patient, the microbes that had developed tolerance against vancomycin were also killed more slowly by daptomycin. Karen Weintraub, Scientific American, "Combining Multiple Antibiotics May Make Bacteria More Likely to Develop Resistance," 9 Jan. 2020 One patient was first put on the antibiotic vancomycin. Karen Weintraub, Scientific American, "Combining Multiple Antibiotics May Make Bacteria More Likely to Develop Resistance," 9 Jan. 2020 The strain she was infected with was already resistant to the antibiotic vancomycin, which was traditionally considered the treatment of last resort. Wired, "Scientists Find a Weak Spot in Some Superbugs' Defenses," 9 Dec. 2019 The organisation’s first contract, with Xelia, a Danish drugs firm, is for vancomycin and daptomycin, antibiotics for highly resistant infections. The Economist, "A dire scarcity of drugs is worsening, in part, because they are so cheap," 14 Sep. 2019 First the antibiotic vancomycin was used to knock down the number of microbes in their guts. Bob Roehr, Smithsonian, "How the Gut Microbiome Could Provide a New Tool to Treat Autism," 14 June 2019 Treatment with vancomycin, a powerful antibiotic that is not absorbed in the bloodstream but stays in the gut, could bring temporary relief. Bob Roehr, Smithsonian, "How the Gut Microbiome Could Provide a New Tool to Treat Autism," 14 June 2019 Is vancomycin needed to knock down the existing microbial ecosystem prior to an influx of healthy gut bacteria? Bob Roehr, Smithsonian, "How the Gut Microbiome Could Provide a New Tool to Treat Autism," 14 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vancomycin.' 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 vancomycin

circa 1956, in the meaning defined above

History and Etymology for vancomycin

vanco- (of uncertain origin) + -mycin

Note: The claim by recent authors that vanco- is formed from the verb vanquish (see, for example, Donald P. Levine, "Vancomycin: a history," Clinical Infectious Diseases, vol. 42, supplement 1, pp. S5-12) is not substantiated by early sources.

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The first known use of vancomycin was circa 1956

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Cite this Entry

“Vancomycin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vancomycin. Accessed 23 Jan. 2021.

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More Definitions for vancomycin

vancomycin

noun
van·​co·​my·​cin | \ ˌvaŋ-kə-ˈmīs-ᵊn How to pronounce vancomycin (audio) \

Medical Definition of vancomycin

: an antibiotic C66H75Cl2N9O24 derived from an actinomycete (Amycolatopsis orientalis synonym Streptomyces orientalis synonym Nocardia orientalis) that is effective against gram-positive bacteria and is used chiefly in the form of its hydrochloride C66H75Cl2N9O24·HCl especially against staphylococci resistant to methicillin — see vancocin

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