TACHYPHYLAXIS
\tˌakɪfɪlˈaksɪs], \tˌakɪfɪlˈaksɪs], \t_ˌa_k_ɪ_f_ɪ_l_ˈa_k_s_ɪ_s]\
Definitions of TACHYPHYLAXIS
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Rapidly decreasing response to a drug or physiologically active agent after administration of a few doses. In immunology, it is the rapid immunization against the effect of toxic doses of an extract or serum by previous injection of small doses. (Dorland, 28th ed)
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