1. That which is derived; anything obtained or deduced from another.

2. <grammar> A word formed from another word, by a prefix or suffix, an internal modification, or some other change; a word which takes its origin from a root.

3. <music> A chord, not fundamental, but obtained from another by inversion; or, vice versa, a ground tone or root implied in its harmonics in an actual chord.

4. <medicine> An agent which is adapted to produce a derivation (in the medical sense).

5. <mathematics> A derived function; a function obtained from a given function by a certain algebraic process.

Except in the mode of derivation the derivative is the same as the differential coefficient.

6. <chemistry> A substance so related to another substance by modification or partial substitution as to be regarded as derived from it; thus, the amido compounds are derivatives of ammonia, and the hydrocarbons are derivatives of methane, benzene, etc.

(06 Feb 2009)

derencephaly, derepression, de-rezz, derivation < Prev | Next > derivative, derivative chromosome, derive

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A chemical substance derived from another substance either directly or by modification or partial substitution.

(11 Mar 2008)

derepression, de-rezz, derivation, derivative < Prev | Next > derivative chromosome, derive, derived class

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