derivative

派生的, 导出的, 非本来[原始]的

derivative

resulting from derivation; derived

based on or making use of other sources; not original or primary

copied from others, esp slavishly; plagiaristic

a term, idea, etc, that is based on or derived from another in the same class

a word derived from another word

a compound that is formed from, or can be regarded as formed from, a structurally related compound

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 rate of change of one quantity with respect to another

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

an activity that represents the expression of hidden impulses and desires by channelling them into socially acceptable forms