What is the meaning of Residual?

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

A remainder left over at the end of some process.

Payments made to performers, writers and directors when a recorded broadcast is repeated.

The difference between the observed value and the estimated value of the quantity of interest.

A spiritual presence left behind in a place as a result of a person's death or some other significant event.

residual

residual

residual

Source: wiktionary.org