2. The act of receiving anything from a source; the act of
procuring an effect from a cause, means, or condition, as
profits from capital, conclusions or opinions from
evidence.
As touching traditional communication, . . . I do
not doubt but many of those truths have had the help
of that derivation. --Sir M. Hale.
3. The act of tracing origin or descent, as in grammar or
genealogy; as, the derivation of a word from an Aryan
root.
4. The state or method of being derived; the relation of
origin when established or asserted.
5. That from which a thing is derived.
6. That which is derived; a derivative; a deduction.
From the Euphrates into an artificial derivation of
that river. --Gibbon.
7. (Math.) The operation of deducing one function from
another according to some fixed law, called the law of
derivation, as the of differentiation or of integration.
8. (Med.) A drawing of humors or fluids from one part of the
body to another, to relieve or lessen a morbid process.