The Collaborative International Dictionary of English v.0.48:
Integer \In"te*ger\, n. [L. integer untouched, whole, entire. See Entire.] A complete entity; a whole number, in contradistinction to a fraction or a mixed number. [1913 Webster] Complex integer (Theory of Numbers), an expression of the form a + b[root]-1, where a and b are real integers. [1913 Webster]