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单词 derivative
释义

WordReference Random House Learner's Dictionary of American English © 2024
de•riv•a•tive /dɪˈrɪvətɪv/USA pronunciation   adj. 
  1. not original;
    coming from something earlier:His music was derivative and not innovative enough.

n. [countable]
  1. something derived or developed from something else, such as a word that has come from another.

WordReference Random House Unabridged Dictionary of American English © 2024
de•riv•a•tive  (di rivə tiv),USA pronunciation adj. 
  1. derived.
  2. not original;
    secondary.

n. 
  1. something derived.
  2. GrammarAlso called derived form. a form that has undergone derivation from another, as atomic from atom.
  3. Chemistrya substance or compound obtained from, or regarded as derived from, another substance or compound.
  4. MathematicsAlso called differential quotient*  [esp. Brit.,] differential coefficient. the limit of the ratio of the increment of a function to the increment of a variable in it, as the latter tends to 0;
    the instantaneous change of one quantity with respect to another, as velocity, which is the instantaneous change of distance with respect to time. Cf. first derivative, second derivative.
  5. Businessa financial contract whose value derives from the value of underlying stocks, bonds, currencies, commodities, etc.
  • Late Latin dērīvātīvus, equivalent. to Latin dērīvāt(us) (see derivation) + -īvus -ive
  • late Middle English derivatif 1400–50
de•riva•tive•ly, adv. 
de•riva•tive•ness, n. 

derivative, +n. 
  1. Businessa financial contract whose value derives from the value of underlying stocks, bonds, currencies, commodities, etc.

Collins Concise English Dictionary © HarperCollins Publishers::
derivative /dɪˈrɪvətɪv/ adj
  1. resulting from derivation; derived
  2. based on or making use of other sources; not original or primary
  3. copied from others, esp slavishly; plagiaristic
n
  1. a term, idea, etc, that is based on or derived from another in the same class
  2. a word derived from another word
  3. a compound that is formed from, or can be regarded as formed from, a structurally related compound: chloroform is a derivative of methane
  4. Also called: differential coefficient, first derivative the change of a function, f(x), with respect to an infinitesimally small change in the independent variable, x; the limit of [f(a + Δx)–f(a)]/Δx, at x = a, as the increment, Δx, tends to 0. Symbols: df(x)/dx, f′(x), Df(x): the derivative of xn is nxn–1
  5. the rate of change of one quantity with respect to another: velocity is the derivative of distance with respect to time
  6. a financial instrument, such as a futures contract or option, the price of which is largely determined by the commodity, currency, share price, interest rate, etc, to which it is linked
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