order of magnitude
noun
1 order of magnitude
A degree in a continuum of size or quantity:
— An explosion of a low order of magnitude.
synonym: order.
2 order of magnitude
A number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10.
synonym: magnitude.
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