order of magnitude

World English Dictionary
order of magnitude
 
n
Also called: order the approximate size of something, esp measured in powers of 10: the order of magnitude of the deficit was as expected; their estimates differ by an order of magnitude

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Cultural Dictionary

order of magnitude definition


A rough measure of the size, or magnitude, of something, expressed as a power of ten: “The mass of the Earth is of the order of magnitude of 1024 kilograms.” Also, the range of values that such a rough statement applies to.

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