A small amount of something that remains after the main part or quantity has been removed or used; a residue. After scrubbing the table, a sticky residual still clung to the surface.
A payment made to a performer, writer, or director for repeated use of a film, television show, or other work. The actor received a residual every time the show was aired.
In statistics, the difference between an observed value and the value predicted by a model. Analysts examined the residuals to check for patterns indicating model bias.