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virulence definition

viru·lence (vir′yo̵o ləns, -o̵o-)

noun

  1. the quality of being virulent, or very poisonous, noxious, malignant, etc.
  2. bitter animosity; venom; rancor
  3. the relative infectiousness of a microorganism causing disease

Etymology: LL virulentia

Also virulency vir′u·lency (-lən sē)

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Alternate definitions:

medical virulence definition - medical

virulence Usage Examples

Preposition: of

  • pathogen: They also commonly contain double-stranded RNA of viral origin, which can affect the virulence of fungal pathogens.

Converse of object

  • carry: Brown Rust of Barley The number of isolates carrying virulence to cv.

Adjective modifier

  • parasitoid: Work at Leiden University has shown considerable geographic variation across Europe in parasitoid virulence ( ability to prevent encapsulation ).

Modifies a noun

  • determinant: Starter strains had less virulence determinants than food strains, which in turn had less than the pathogenic strains.

Noun used with modifier

  • pathogen: Combining all four different strategies lead to higher pathogen virulence despite the beneficial effect of anti-infection vaccines.
virulence usage examples (more)

The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.

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MLA Style

"virulence." Webster's New World College Dictionary. 2009

  • Your Dictionary. 5 July 2009
  • <www.yourdictionary.com/virulence>

APA Style

virulence. (2009). In Webster's New World College Dictionary

  • Retrieved July 5th, 2009, from www.yourdictionary.com/virulence

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