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Med an abnormal reaction of an individual to specific foods, drugs, or other agents



a painful reaction that appears in certain persons to irritants that do not produce similar phenomena in the majority of others. The basis of idiosyncrasy is either a congenital increased sensitivity of the autonomic nervous system to particular irritants or a reaction that arises in the body as a result of the repeated weak action of certain substances that are incapable of stimulating antibody production in the body.

Idiosyncrasy differs from allergy in that it may develop even after the first contact with an intolerable irritant—for instance, simple chemical compounds that do not have the properties of allergens; such food products as fish, roe, crab, milk, eggs, and strawberries; such medications as amidopyrine, antibiotics, and sulfanilamide preparations; the pollens of certain flowers and plants; the odor of various animals; insect poisons; and such physical factors as sunstroke, chill, or trauma.

Soon after contact with the irritant, headache appears in the individual, and his temperature rises, sometimes accompanied by mental agitation, disruption of the function of the organs of digestion (nausea, vomiting, diarrhea) and respiration (dyspnea, coryza), edema of the skin and mucosa, and urticaria. These phenomena, which are caused by disruptions of blood circulation, increased permeability of the vessels, and spasms of the smooth musculature, usually pass quickly, but sometimes may continue for several days. The reaction does not produce insen-sitivity to the repeated action of the agent. Treatment requires avoidance of further contact with the intolerable irritant and lowering the body’s heightened reactivity.



A peculiarity of constitution that makes an individual react differently from most persons to drugs, diet, treatment, or other situations.
Any special or peculiar characteristic or temperament by which a person differs from other persons.
References in periodicals archive ?
While Cory's method departed significantly from Swanson's work due to the idiosyncrasies of the humanities language, this experiment nevertheless linked logically-related citations that were bibliographically unlinked.
What's more, a servo-driven pump might not respond the same as one with a fixed-speed motor, so you could end up with an energy-efficient machine that has more idiosyncrasies than a standard hydraulic press.
The hitter must also have a knowledge of the pitcher - his repertoire, pitching pattern, idiosyncrasies, coolness under fire, what rattles him.
Since businesses exhibit all the idiosyncrasies of the people who run them, they generally evolve in similar ways.
A classic of travel literature, Travels gives a humorous account of Modestine's idiosyncrasies and the mutual adjustments of author and donkey.
DUE to its idiosyncrasies it often pays to follow horses with previous course form at Chepstow, and Soviet Sceptre (2.
Each one, for all its idiosyncrasies of shape and texture--they are overtly handmade, not machined; that is, painterly rather than hard-edge--feels definitive in its function and identity.
It allows the user to enter the minimum amount of data and get through the process far more intuitively rather than having to know the intricacies and idiosyncrasies of the city's site.
Her detractors complain that her attachment to pop music is tenuous at best, that her compositions lack structure, and that her idiosyncrasies are too alienating.
This is an amazing story of extreme patience, perseverance and love as the Siddles learned to care for chimps, put up with all their idiosyncrasies and the dangers involved, and become totally committed to their well being.