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1753, from Latin spasticus, from Greek spastikos "afflicted with spasms," literally "drawing, pulling," from span "draw up" (see spasm). The noun meaning "a person affected with spastic paralysis" is attested from 1896.
spastic spas·tic (spās'tĭk)
Relating to or affected by spasm.
Relating to spastic paralysis.
: only the spastic twits in competitionnoun
[sometimes used cruelly, in reference to the plight of cerebral palsy patients exhibiting constant body spasms]