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cross-reaction

[kraws-ree-ak-shuh n-kros-]
noun
  1. an immunologic reaction between a given antigen and an antibody or lymphokine that is specific for a different antigen resembling the first one.
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Origin of cross-reaction

First recorded in 1945–50
Related formscross-re·ac·tive, adjectivecross-re·ac·tiv·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018