par·a·ple·gia 
(păr′ə-plējə, -jē-ə)
(păr′ə-plējə, -jē-ə)n.
Complete paralysis of the lower half of the body including both legs, usually caused by damage to the spinal cord.
[Greek dialectal paraplēgiē, hemiplegia, from paraplēssesthai, paraplēg-, to be paralyzed, from paraplēssein, to strike on one side : para-, beside; see PARA-1 + plēssein, to strike; see plāk-2 in the Appendix of Indo-European roots.]
par′a·plegic (-plējĭk) adj. & n.