Etymology
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knee-jerk (n.)

patellar reflex, a neurological phenomenon discovered and named in 1876; see knee (n.) + jerk (n.1) in the medical sense. The figurative use appeared soon after the phrase was coined.

updated on October 10, 2017

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Dictionary entries near knee-jerk

knead

knee

kneecap

knee-deep

knee-high

knee-jerk

kneel

kneepad

knell

knelt

Knesset