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reaction |
Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Wikipedia, Hutchinson | 0.03 sec. |
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reaction 1. opposition to change, esp political change, or a desire to return to a former condition or system 2. a response indicating a person's feelings or emotional attitude 3. Med a. any effect produced by the action of a drug, esp an adverse effect b. any effect produced by a substance (allergen) to which a person is allergic the simultaneous equal and opposite force that acts on a body whenever it exerts a force on another body 4. short for chemical reaction, nuclear reaction reaction [rē′ak·shən] (control systems) (mechanics) The equal and opposite force which results when a force is exerted on a body, according to Newton's third law of motion. (nuclear physics) 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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| The antibodies, which are circulating proteins, respond within minutes and elicit an immediate hypersensitivity reaction. the prevention or reduction of immediate hypersensitivity reactions by administration of graded doses of allergen. the prevention or reduction of immediate hypersensitivity reactions by administration of graded doses of allergen. |
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