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单词 knee jerk
释义

WordReference Random House Unabridged Dictionary of American English © 2024
knee′ jerk′, 
  1. Physiologya reflex extension of the leg, caused by contraction of the quadriceps, resulting from a sharp tap on the patellar tendon;
    patellar reflex.
  • 1875–80

knee-jerk  (nē′jûrk′),USA pronunciation adj. 
  1. of or pertaining to a knee-jerk.
  2. [Informal.]reacting according to a certain habitual manner;
    unthinking:a knee-jerk liberal.
  • 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::
knee jerk n
  1. Also called: patellar reflex an outward reflex kick of the lower leg caused by a sharp tap on the quadriceps tendon just below the patella
 modifier kneejerk
  1. made or occurring as a predictable and automatic response, without thought: kneejerk support
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更新时间：2025/2/23 15:02:21