# curve definition, curve meaning | English dictionary

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## curve

n
1    a continuously bending line that has no straight parts
2    something that curves or is curved, such as a bend in a road or the contour of a woman's body
3    the act or extent of curving; curvature
4      (Maths)
a    a system of points whose coordinates satisfy a given equation; a locus of points
b    the graph of a function with one independent variable
5    a line representing data, esp. statistical data, on a graph
an unemployment curve
6       short for       French curve
vb
7    to take or cause to take the shape or path of a curve; bend
(C15: from Latin curvare to bend, from curvus crooked)
curvedness      n

characteristic curve
n     (Photog)   a graph of the density of a particular photographic material plotted against the logarithm of the exposure producing this density
curve ball
n
1      (Baseball)   a ball pitched in a curving path so as to make it more difficult to hit
2    Informal   something deceptive
his wholesome image was a curve ball thrown to deceive the public
death-valley curve
n   a curve on a graph showing how the capital of a new company plotted against time declines sharply as the venture capital is used up before income reaches predicted levels
French curve
n   a thin plastic sheet with profiles of several curves, used by draughtsmen for drawing curves
growth curve
n   a curve on a graph in which a variable is plotted against time to illustrate the growth of the variable
Laffer curve
n     (Economics)   a curve on a graph showing government tax revenue plotted against percentage tax rates. It has been used to show that a cut in a high tax rate can increase government revenue
(C20: named after Arthur Laffer (born 1940), US economist)
learning curve
n   a graphical representation of progress in learning
I'm still only half way up the learning curve
normal curve
n     (Statistics)   a symmetrical bell-shaped curve representing the probability density function of a normal distribution. The area of a vertical section of the curve represents the probability that the random variable lies between the values which delimit the section
Phillips curve
n     (Economics)   a curve that purports to plot the relationship between unemployment and inflation on the theory that as inflation falls unemployment rises and vice versa
(C20: named after A. W. H. Phillips (1914--75), English economist who formulated the theory)
RIAA curve
n     (Electronics)   a graphical representation, adopted as a worldwide standard, of the amplitude in relation to frequency response required for correct reproduction of microgroove disc recordings, compensating for the characteristics of the recording process
(C20: Record Industry Association of America)
sine curve
n   a curve of the equation y = sin x,   (Also called)    sinusoid
English Collins Dictionary - English Definition & Thesaurus

## curve

1
vb   arc, arch, bend, bow, coil, hook, inflect, spiral, swerve, turn, twist, wind
2
n   arc, bend, camber, curvature, half-moon, loop, trajectory, turn

English Collins Dictionary - English synonyms & Thesaurus