(Or "whole number") One of the finite numbers in the infinite set ..., -3, -2, -1, 0, 1, 2, 3, ... An inductive definition of an iNTeger is a number that is either zero or an iNTeger plus or minus one. An iNTeger is a number with no fractional part. If written as a fixed-poiNT number, the part after the decimal (or other base) poiNT will be zero. A natural number is a non-negative iNTeger. (2002-04-07)