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MRSA

[mur-suh or, esp. Canadian, said as letters]
noun
  1. methicillin-resistant Staphylococcus aureus, a bacterium that is highly resistant to methicillin, penicillin, and certain other antibiotics, and may cause infections of the skin, blood, lungs, etc.: MRSA infections in hospitals and healthcare facilities.
  2. a staph infection caused by these bacteria: the threat of MRSA among athletes.
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Origin of MRSA

First recorded in 1980–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for mrsa

MRSA

abbreviation for
  1. methicillin-resistant Staphylococcus aureus : a bacterium that enters the skin through open wounds to cause septicaemia and is extremely resistant to most antibiotics. It has been responsible for outbreaks of untreatable infections among patients in hospitals
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012