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reactions Definition
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reactions
noun(re-ac-tion)the act or process or an instance of reacting
reactions
noun(re-ac-tion)resistance or opposition to a force, influence, or movement; especially : tendency toward a former and usually outmoded political or social order or policy
reactions
noun(re-ac-tion)a response to some treatment, situation, or stimulus; also : such a response expressed verbally
reactions
noun(re-ac-tion)the initial reaction of an organism (such as increased hormonal activity) to stress
reactions
noun(re-ac-tion)a series of events so related to each other that each one initiates the next
reactions
noun(re-ac-tion)a number of events triggered by the same initial event
reactions
noun(re-ac-tion)a self-sustaining chemical or nuclear reaction yielding energy or products that cause further reactions of the same kind
reactions
noun(re-ac-tion)a reaction in response or opposition to the main reaction
reactions
noun(re-ac-tion)reaction of one antigen with antibodies developed against another antigen
reactions
noun(re-ac-tion)any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate; especially : calvin cycle
reactions
noun(re-ac-tion)the development of a brilliant purple color by DNA in a microscopic preparation stained with a modified Schiff's reagent
reactions
noun(re-ac-tion)the light-dependent transfer of electrons by chloroplasts in photosynthesis that results in the cleavage of water molecules and liberation of oxygen
reactions
noun(re-ac-tion)the phase of photosynthesis that requires the presence of light and that involves photophosphorylation
reactions
noun(re-ac-tion)a nonenzymatic reaction between sugars and proteins that occurs upon heating and that produces browning of some foods (such as meat and bread)