1. conjugate (Grammar); by-product, offshoot. obtained from another source, derived, borrowed. derivative\de*riv"a*tive\ , a. [l. derivativus: cf. f. dérivatif.] obtained by derivation; derived; not radical, original, or fundamental; originating, deduced, or formed from something else; secondary; as, a derivative conveyance; a derivative word.derivative circulation, a modification of the circulation found in some parts of the body, in which the arteries empty directly into the veins without the interposition of capillaries. -- de*riv"a*tive*ly, adv. -- de*riv"a*tive*ness, n.derivative \de*riv"a*tive\, n.
2. that which is derived; anything obtained or deduced from another.
3. (gram.) 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.
4. (mus.) 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.
5. (med.) an agent which is adapted to produce a derivation (in the medical sense).
6. (math.) a derived function; a function obtained from a given function by a certain algebraic process.note: except in the mode of derivation the derivative is the same as the differential coefficient. see:
differential coefficient, under differential.
7. (chem.) 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.
8. Obtained by derivation; derived; not radical, original, or fundamental; originating, deduced, or formed from something else; secondary; as, a derivative conveyance; a derivative word.
9. That which is derived; anything obtained or deduced from another.
10. 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.
11. 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.
12. An agent which is adapted to produce a derivation.
13. A derived function; a function obtained from a given function by a certain algebraic process.
14. 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. a word that is derived from another word; "`electricity' is a derivative of `electric'" resulting from or employing derivation; "a derivative process"; "a highly derivative prose style".
15. 1. A derivative is something which has been developed or obtained from something else. a poppy-seed derivative similar to heroin.
16. disapproval If you say that something is derivative, you are criticizing it because it is not new or original but has been developed from something else. their dull, derivative debut album. not new or invented, but copied or taken from something else - used to show disapproval. In mathematics, a fundamental concept of differential calculus representing the instantaneous rate of change of a function. The first derivative of a function is a function whose values can be interpreted as slopes of tangent lines to the graph of the original function at a given point. The derivative of a derivative (known as the second derivative) describes the rate of change of the rate of change, and can be thought of physically as acceleration. The process of finding a derivative is called differentiation.
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