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definite integral

Math. an integral in which the range of integration is specified: its value equals the area on a graph bounded by a curve, the x-axis, and two given ordinates

See definite integral in American Heritage Dictionary 4

noun
  1. An integral that is calculated between two specified limits, usually expressed in the form b/a ƒ(x)dx. The result of performing the integral is a number that represents the area under the curve of ƒ(x) between the limits and the x-axis if f(x) is greater than or equal to zero between the limits.
  2. The result of an integration performed on a fixed interval.

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