Meaning of APPROXIMATION in English
transcription, транскрипция: [ əprɒksɪmeɪʃ(ə)n ]
An approximation is a fact, object, or description which is similar to something else, but which is not exactly the same.
That is a fair approximation of the way in which the next boss is being chosen.
N-COUNT : oft N of/to n
An approximation is a number, calculation, or position that is close to a correct number, time, or position, but is not exact.
Clearly that’s an approximation, but my guess is there’ll be a reasonable balance.
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006