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knee jerk: Meaning and Definition of
knee' jerk"
Pronunciation: [key]
- a reflex extension of the leg, caused by contraction of the quadriceps, resulting from a sharp tap on the patellar tendon; patellar reflex.
knee-jerk
Pronunciation: (nē'jûrk"), [key]
— adj.
- of or pertaining to a knee-jerk.
- reacting according to a certain habitual manner; unthinking: a knee-jerk liberal.
