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Meaning of improper integral

improp'er in'tegral

Pronunciation: [key]
— Math. Math.
  1. Also calleda definite integral in which one or both of the limits of integration is infinite.
  2. a definite integral in which the integrand becomes infinite at a point or points in the interval of integration.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.