derivative
n//dɪˈɹɪvətɪv//derivata, derivat, avledning
Something derived.
The value of such a derived function for a given value of its independent variable: the rate of change of a function at a point in its domain.
(of more general classes of functions) Any of several related generalizations of the derivative: the directional derivative, partial derivative, Fréchet derivative, functional derivative, etc.
(chemistry) A chemical derived from another.
(calculus) One of the two fundamental objects of study in calculus (the other being integration), which quantifies the rate of change, tangency, and other qualities arising from the local behavior of a function.
(of a function of a single variable f(x)) The derived function of f(x): the function giving the instantaneous rate of change of f; equivalently, the function giving the slope of the line tangent to the graph of f. Written f'(x) or \frac{df}{dx} in Leibniz's notation, \dot{f}(x) in Newton's notation (the latter used particularly when the independent variable is time).