Meaning of constant of integration

con'stant of integra'tion

Pronunciation: [key]
— Math. Math.
  1. a constant that is added to the function obtained by evaluating the indefinite integral of a given function, indicating that all indefinite integrals of the given function differ by, at most, a constant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.