residual

Short definition from Wiktionary

Adjective

1. 1
   Of, relating to, or remaining as a residue; left over.

Noun

1. 1
   A remainder left over at the end of some process.
2. 2
   Payments made to performers, writers and directors when a recorded broadcast is repeated.
3. 3
   The difference between the observed value and the estimated value of the quantity of interest.
4. 4
   A spiritual presence left behind in a place as a result of a person's death or some other significant event.