derivation

noun13

1. •
   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.
2. •
   The act of tracing origin or descent; an instance thereof (for example, an etymology).
3. •
   The process of deriving one thing from another, especially in logic; a deduction.
4. •
   A formal proof: a sequence of statements, each of which is logically entailed by those preceding (with respect to some collection of rules of inference), the initial statements being taken as axioms.
5. •
   Forming a new word by changing the base of another word or by adding affixes to it.
6. •
   The state or method of being derived; the relation of origin when established or asserted.
7. •
   That which is derived; a derivative; the result of a deduction.

   • There were also letters to scientists and other scholars, pages of derivations of mathematics and physics formulae, and copious writings on alchemy and religion. — 2014
8. •
   The process of application of the derivative operator to a function, yielding another function called the derived function of the first.
9. •
   That from which a thing is derived.
10. •
    An algebraic generalization of the derivative operator (from its natural setting in the ring of real-valued functions) to a general associative algebra over a field. Formally, (given an algebra A over a field K) a K-linear endomorphism that satisfies Leibnitz's Law.
11. •
    Any of several generalizations of this notion: a Hasse–Schmidt derivation, a graded derivation, etc.
12. •
    A leading or drawing off of water from a stream or source.
13. •
    (historical) A drawing of humors or fluids from one part of the body to another, to relieve or lessen a morbid process.