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specificity

[spes-uh-fis-i-tee]
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noun
  1. the quality or state of being specific.
  2. Biochemistry, Pharmacology. the selective attachment or influence of one substance on another, as an antibiotic and its target organism or an antibody and its specific antigen.

Origin of specificity

First recorded in 1875–80; specific + -ity
Related formsnon·spec·i·fic·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for specificities

specificity

n.

1876, from French spécificité or else a native formation from specific + -ity.

Online Etymology Dictionary, © 2010 Douglas Harper

specificities in Medicine

diagnostic specificity

n.
  1. The probability that, given the absence of disease, a normal test result will exclude the disease.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.