A function for which the integral can be computed is said to be integrable.
Integrable
See also
Differentiable, Integrable Differential Ideal, Integral, Integration, Locally Integrable, Square IntegrableExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Integrable." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Integrable.html