Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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bell curve see bell-shaped curve.
bell-shaped curve a graphic representation of a statistically normal frequency distribution, which resembles the outline of a bell; bell curve.
curve ball a baseball pitch in which the ball curves toward the opposite side from which it was thrown. [2 definitions]
French curve a flat drafting template used for drawing a variety of curved lines.
Laffer Curve a graph illustrating the theory that increasing taxes results in increased government revenue only up to a certain point, after which further tax increases discourage production and investment.