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Medical Definition of Lengthening reaction
1. In the decerebrate animal, the rather sudden relaxation with lengthening of the extensor muscles when a limb is passively flexed; associated with clasp-knife spasticity. (05 Mar 2000)
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1. In the decerebrate animal, the rather sudden relaxation with lengthening of the extensor muscles when a limb is passively flexed; associated with clasp-knife spasticity. (05 Mar 2000)