Residual /(r?-z?d"?-al)/

Re·sid·u·al

Residual

a.
  1. Pertaining to a residue; remaining after a part is taken.

Phrases & Compounds

Residual air
that portion of air contained in the lungs which can not be expelled even by the most violent expiratory effort. It amounts to from 75 to 100 cubic inches. Cf. Supplemental air, under Supplemental.
Residual error
See Error, 6 (b).
Residual figure
the figure which remains after a less figure has been taken from a greater one.
Residual magnetism
remanent magnetism. See under Remanent.
Residual product
a by product, as cotton waste from a cotton mill, coke and coal tar from gas works, etc.
Residual quantity
a binomial quantity the two parts of which are connected by the negative sign, as a-b.
Residual root
the root of a residual quantity, as √(a-b).

Residual

n.
  1. The difference of the results obtained by observation, and by computation from a formula. (Math.)