Meaning of APPROXIMATION in English
noun a value that is nearly but not exactly correct.
2. approximation ·noun a continual approach or coming nearer to a result; as, to solve an equation by approximation.
3. approximation ·noun an approach to a correct estimate, calculation, or conception, or to a given quantity, quality, ·etc.
4. approximation ·noun the act of approximating; a drawing, advancing or being near; approach; also, the result of approximating.
Webster English vocab. Английский словарь Webster. 2012