Integer (noun)

1. A whole number, not a fraction.
2. A number that can be written without a fractional component.

Origin:

From latin integer ("whole, entire, complete"), from intus ("within") + agere ("to d.o")

Examples:

1. The sum of two integers is also an integer.
2. The number of apples is an integer.
3. The integer part of a number is obtained by discarding any fractional component.
4. An integer is a number that can be written without a fractional component.
5. Integers include positive whole numbers, negative whole numbers, and zero.