# order of magnitude

## English

### Noun

order of magnitude (plural orders of magnitude)

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1. The class of scale or magnitude of any amount, where each class contains values of a fixed ratio (most often 10) to the class preceding it. For example, something that is 2 orders of magnitude larger is 100 times larger, something that is 3 orders of magnitude larger is 1000 times larger, and something that is 6 orders of magnitude larger is a million times larger, because $10^2$ = 100, $10^3$ = 1000, and $10^6$ = a million.