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The Collaborative International Dictionary of English v.0.48 (gcide)

Residual \Re*sid"u*al\, n. (Math.)
(a) The difference of the results obtained by observation,
and by computation from a formula.
(b) The difference between the mean of several observations
and any one of them.
[1913 Webster]


Residual \Re*sid"u*al\ (r?-z?d"?-al), a. [See {Residue}.]
Pertaining to a residue; remaining after a part is taken.
[1913 Webster]

{Residual air} (Physiol.), 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}. (Mensuration) See {Error}, 6
(b) .

{Residual figure} (Geom.), the figure which remains after a
less figure has been taken from a greater one.

{Residual magnetism} (Physics), 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} (Alg.), a binomial quantity the two parts
of which are connected by the negative sign, as a-b.

{Residual root} (Alg.), the root of a residual quantity, as
[root](a-b).
[1913 Webster]

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