What does the word approximation mean?

Usage examples for approximation

  1. But before we become entangled in our own terms, I should perhaps remind you that when I employ the word 'memory' I am only making use of a convenient approximation. – Freudian Slip by Franklin Abel
  2. Still, in the result we are not to see in any case the effect of a supernatural revelation, but in all cases an approximation in different degrees to truth, secured by the unaided working of the human mind. – Life and Work in Benares and Kumaon, 1839-1877 by James Kennedy
  3. Having satisfied himself that the axe was free from all approximation to rust, he stuck it into a belt of raw hide, which he put on for the express purpose of sustaining it, as Esquimaux do not generally wear belts. – Ungava by R.M. Ballantyne