re·sid·u·al 
(rĭ-zĭj-əl)
(rĭ-zĭj-əl)adj.
1. Of, relating to, or characteristic of a residue.
2. Remaining as a residue.
n.
1. The quantity left over at the end of a process; a remainder.
2. often residuals A payment made to a performer, writer, or director for each repeat showing of a recorded television show or commercial.
re·sidu·al·ly adv.