Integral

n.
  1. A whole; an entire thing; a whole number; an individual.
  2. (Math.) An expression which, being differentiated, will produce a given differential. See differential Differential, and Integration. Cf. Fluent.
    3. Elliptic integral ,
    one of an important class of integrals, occurring in the higher mathematics; -- so called because one of the integrals expresses the length of an arc of an ellipse.