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[loh-greyd] /ˈloʊˈgreɪd/
of an inferior quality, worth, value, etc.:
The mine yields low-grade silver ore.
Origin of low-grade
1875-80; low1 + grade Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for low-grade
Contemporary Examples
Historical Examples
  • The coffee is about equal to low-grade Brazil, and is used principally as a filler.

    All About Coffee William H. Ukers
  • Am I a low-grade perjurer—and my friend what he was working round to show?

    Lorimer of the Northwest Harold Bindloss
  • Fuel gas made from low-grade coal is a satisfactory substitute for natural gas.

    Checking the Waste Mary Huston Gregory
  • Kainit is a low-grade potash because the impurities have not been taken out.

  • The bitumens are represented in the island by asphalt, a low-grade coal, and seepages of petroleum.

    Cuba, Old and New Albert Gardner Robinson
Word Origin and History for low-grade

1867, originally in mining, with reference to ores, from low (adj.) + grade (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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