order of magnitude

Noun

• 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

• a degree in a continuum of size or quantity
  • it was on the order of a mile
    
  • an explosion of a low order of magnitude
    

Related words

• Synonyms: 
  magnitude , order