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de·riv·a·tive /dɪˈrɪvətɪv/

(a.)引出的,系出的引出之物,系出物,衍生字

de·riv·a·tive /dɪˈrɪvətɪv/ 形容詞

衍生,導(函)數,衍生的,衍化物,誘導劑,衍生物

From: Network Terminology

derivative

導出 微分 導數

De·riv·a·tive a. 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.

De·riv·a·tive, n.

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

2. 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.

3. 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.

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

5. 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.

6. 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.

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From: WordNet (r) 2.0

derivative

adj : resulting from or employing derivation; "a derivative

process"; "a highly derivative prose style"

n 1: the result of mathematical differentiation; the

instantaneous change of one quantity relative to

another; df(x)/dx [syn: derived function, differential

coefficient, differential, first derivative]

2: a financial instrument whose value is based on another

security [syn: derivative instrument]

3: (linguistics) a word that is derived from another word;

"`electricity' is a derivative of `electric'"