superbug

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noun su·per·bug \ˈsü-pər-ˌbəg\

Definition of superbug

  1. :  a pathogenic microorganism and especially a bacterium that has developed resistance to the medications normally used against it

Recent Examples of superbug from the Web

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

First Known Use of superbug

1945


Medical Dictionary

superbug

play
noun su·per·bug \ˈsü-pər-ˌbəg\

Medical Definition of superbug

  1. :  a pathogenic microorganism and especially a bacterium that has developed resistance to the medications normally used against it The rise of superbugs that can survive multiple antibiotics—such as MRSA, the notorious “flesh-eating bacterium”—has turned once-trivial infections into persistent problems.—Valerie Ross, Discover, 7 Sept. 2010

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