paraplegia(n = noun.state) - paralysis of the lower half of the body (most often as a result of trauma);
is a kind of palsy, paralysis
Derived form adjective paraplegic₁

   Palsy of the lower half of the body on both sides, caused usually by disease of the spinal cord. [1913 Webster]

paraplegia, n. paralysis of the legs and part or the whole of the trunk.

Derivative:
paraplegic adj. & n.

Etymology:
mod.L f. Gk paraplegia f. paraplesso (as PARA-(1), plesso strike)