Meaning of ORDER OF MAGNITUDE in English

ORDER OF MAGNITUDE

noun

( mathematics ) a level in a system of ordering things by size or amount, where each level is higher by a factor of ten :

The actual measurement is two orders of magnitude (= a hundred times) greater than we expected.

( figurative )

The problem is of the same order of magnitude for all concerned.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.