| 1. | Mathematics. one of the positive or negative numbers 1, 2, 3, etc., or zero. Compare whole number. |
| 2. | a complete entity. |

The whole numbers, plus their counterparts less than zero, and zero. The negative integers are those less than zero (–1, –2, –3, and so on); the positive integers are those greater than zero (1, 2, 3, and so on).