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copperas

[kop-er-uh s] /ˈkɒp ər əs/
noun, Chemistry
Origin
late Middle English
1400-1450
1400-50; late Middle English coperas, variant of Middle English coperose < Medieval Latin (aqua) cuprōsa copperish (water). See copper1, -ose1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for copperas
  • The city of copperas cove is served by the copperas cove independent school district.
British Dictionary definitions for copperas

copperas

/ˈkɒpərəs/
noun
1.
a less common name for ferrous sulphate
Word Origin
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
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Word Value for copperas

14
17
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