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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| knee jerk | |
| —n | |
| 1. | physiol 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 | |
| 2. | made or occurring as a predictable and automatic response, without thought: kneejerk support |
knee jerk n.
See patellar reflex.
knee-jerk definition
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