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order of magnitude

noun
1.
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 Also called order
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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order of magnitude in Culture

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.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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