copperas

[kop-er-uh s]
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noun Chemistry.


Nearby words

  1. copper-bottomed,
  2. copper-fasten,
  3. copper-leaf,
  4. copper-sulfate method,
  5. copperah,
  6. copperas cove,
  7. copperhead,
  8. copperheadism,
  9. copperheads,
  10. coppermine

Origin of copperas

1400–50; late Middle English coperas, variant of Middle English coperose < Medieval Latin (aqua) cuprōsa copperish (water). See copper1, -ose1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for copperas


British Dictionary definitions for copperas

copperas

noun

a less common name for ferrous sulphate

Word Origin for copperas

C14: coperose, via Old French from Medieval Latin cuperosa, perhaps originally in the phrase aqua cuprosa copper water

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012