order of magnitude ˌorder of ˈmagnitude noun [C usually singular]
1 F0 the approximate size of something, especially a number: » The country's debt this year will be of the same order of magnitude as it was last year.Thesaurus+: ↑General words for size and amount2 F0 SPECIALIZED a level in a system used for measuring something in which each level is ten times larger than the one before: » These processor speeds have recently increased by two orders of magnitude (= by a hundred times). |