vancomycin

noun

van·​co·​my·​cin ˌvaŋ-kə-ˈmī-sᵊn How to pronounce vancomycin (audio)
: 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 As with my friend Candy, a single course of oral vancomycin, taken four times a day, quashed this patient’s illness. Claire Panosian Dunavan, Discover Magazine, 8 Feb. 2011 About 1 in 3 infections are resistant to the go-to antibiotic, vancomycin. Christian Millman, Discover Magazine, 6 June 2018 However, a newer antibiotic, fidaxomicin, has been proven more effective and would be a better choice for you, having failed a course of vancomycin. Dr. Keith Roach, oregonlive, 18 Aug. 2022 Swabs from the skin, nose and mouth, as well as saliva and stool samples, showed that 34 percent of all participants had antibiotic-resistant bacteria, such as resistant Gram-negative bacilli or vancomycin-resistant enterococci. Allison Parshall, Scientific American, 16 May 2022 She was taken off clindamycin and put on vancomycin. Dr. Keith Roach, oregonlive, 10 Nov. 2021 Both vancomycin and the dye that her group used are already known to be safe in humans. Sara Reardon, Scientific American, 15 Oct. 2013 Only some bacteria will bind to vancomycin, so physicians will be able to narrow down the cause an infection and thus how to fight it. Sara Reardon, Scientific American, 15 Oct. 2013 Then, from day eight to day 14, vancomycin was replaced with daptomycin. Karen Weintraub, Scientific American, 9 Jan. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'vancomycin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

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.

First Known Use

circa 1956, in the meaning defined above

Time Traveler
The first known use of vancomycin was circa 1956

Dictionary Entries Near vancomycin

Cite this Entry

“Vancomycin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vancomycin. Accessed 25 May. 2024.

Medical Definition

vancomycin

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