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knawel
knead
knee
knee action
knee breeches
knee-deep
knee drop
knee-high
knee jerk
knee-jerk
knee-length
knee slide
knee sock
knee-trembler
kneecap
kneehole
kneel
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knee jerk

knee jerk (plural knee jerks)


noun 
Definition:
 
involuntary kick from knee: an involuntary contraction of the thigh muscle that produces a sudden extension of the leg, usually in response to a light rap on the tendon below the kneecap

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