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paralysis pa·ral·y·sis (pə-rāl'ĭ-sĭs)
n. pl. pa·ral·y·ses (-sēz')
Loss of power of voluntary movement in a muscle through injury or through disease of its nerve supply.
Loss of sensation over a region of the body.
The loss of voluntary movement in a body part. Paralysis results from damage to the nerves that supply the affected part of the body.