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desensitization |
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desensitizationor hyposensitizationTreatment to eliminate allergic reactions (see allergy) by injecting increasing strengths of purified extracts of the substance that causes the reaction. This creates special antibodies (blocking antibodies) in the patient's serum that combine with the allergen, blocking its reaction with allergic antibodies. Desensitization can also be required when a penicillin-sensitive person needs to be treated with penicillin. See also anaphylaxis, antigen. desensitization [dē‚sen·sə·tə′zā·shən] (communications) Reduction in receiver sensitivity due to the presence of a high-level off-channel signal overloading the radio-frequency amplifier or mixer stages, or causing automatic gain control action. (immunology) Loss or reduction of sensitivity to infection or an allergen accomplished by means of frequent, small doses of the antigen. Also known as hyposensitization. (psychology) Relief from or removal of a mental complex. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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