What is the meaning of hypersensitivity reaction?

noun

  • An inappropriate and excessive reaction to an allergen (as pollen or dust or animal hair or certain foods); severity ranges from mild allergy to severe systemic reactions leading to anaphylactic shock. .
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). hypersensitivity reaction. Retrieved September 22, 2026, from http://smartdefine.org/hypersensitivity_reaction/definitions/1247231
ChicagoWordNet. 2010. "hypersensitivity reaction" http://smartdefine.org/hypersensitivity_reaction/definitions/1247231 (accessed September 22, 2026).
HarvardWordNet 2010, hypersensitivity reaction, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/hypersensitivity_reaction/definitions/1247231>.
MLAWordNet. "hypersensitivity reaction" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/hypersensitivity_reaction/definitions/1247231>