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knee-jerk reflex
- A sudden involuntary forward movement of the lower leg that can be produced by a firm tap to the tendon located just below the kneecap.
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Notes
The term is loosely applied to any response or belief that is automatic rather than thoughtful. In this sense, it is usually a term of reproach: 鈥淪mith is a knee-jerk liberal .鈥
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Example Sentences
Examples have not been reviewed.
My self-deprecating remarks, a knee-jerk reflex with me, didn鈥檛 amuse him.
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Examples include the human knee-jerk reflex and the act of walking.
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鈥淚t鈥檚 like they go into hibernation from the overwhelming stress. Their brain switches off engagement with their social environment. They don鈥檛 respond to pain. Their knee-jerk reflex is absent.鈥
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鈥淚t鈥檚 like they go into hibernation from the overwhelming stress. Their brain switches off engagement with their social environment. They don鈥檛 respond to pain. Their knee-jerk reflex is absent.鈥
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Just as with the knee-jerk reflex, 鈥測ou have to hit the knee hard enough in the right place, or else nothing happens,鈥 he told me.
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