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单词 tachyphylaxis
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tach•y•phy•lax•is  (tak′ə fi laksis),USA pronunciation n. 
  1. Medicineimmediate, temporary immunization against the effects of injection of a toxic extract owing to previous small injections of the same extract.
a decreased response to a medicine given over a period of time so that larger doses are required to produce the same response. Also, tach•y•phy•lax•i•a  (tak′ə fi laksē ə).USA pronunciation 
  • tachy- + Greek phýlaxis a guarding, equivalent. to phylak- (stem of phylássein to guard) + -sis -sis
tach•y•phy•lac•tic  (tak′ə fi laktik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
tachyphylaxis /ˌtækɪfɪˈlæksɪs/ n
  1. very rapid development of tolerance or immunity to the effects of a drug
Etymology: New Latin, from tachy- + phylaxis on the model of prophylaxis. See prophylactic
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更新时间:2025/7/23 2:09:42