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

The condition of being, or the extent to which something is residual

plural of residuality

Left after the main part has gone or been used.

plural of quadratic residue

plural of day's residue

(number theory, modular arithmetic) For given positive integer n, any integer that is congruent to some square m² modulo n.

(number theory) A coset of an ideal of the ring of integers.

(biology) The volume of unexpended air that remains in the lungs following maximum expiration.

That portion of air which cannot be expelled by the most violent efforts from the lungs.