Whatever remains after something else has been removed. / (chemistry) The substance that remains after evaporation, distillation, filtration or any similar process.

plural of residue

plural of residuent

residual

by-product; residuum

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

A remainder left over at the end of some process. / (in the plural) Payments made to performers, writers and directors when a recorded broadcast is repeated.

plural of residual

(transitive) To compute the residual of.

To a residual extent