hypersensitivity

Definitions of hypersensitivity

1. noun

   extreme sensitivity
   type of:

   sensibility, sensitiveness, sensitivity

   (physiology) responsiveness to external stimuli; the faculty of sensation
2. noun

   pathological sensitivity
   types:

   cryaesthesia, cryesthesia

   hypersensitivity to cold

   hypersensitivity reaction

   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

   intolerance

   inability to properly absorb or digest a drug, food, or other substance

   hives, nettle rash, urticaria, urtication

   an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs

   allergic reaction, allergy

   hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity

   anaphylaxis

   hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance

   allergic rhinitis

   rhinitis caused by an allergic reaction

   type of:

   predisposition, sensitivity

   susceptibility to a pathogen