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copperas

[kop-er-uhs]

noun

Chemistry.
  1. ferrous sulfate.



copperas

/ ˈkɒpərəs /

noun

  1. a less common name for ferrous sulphate

“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
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Word History and Origins

Origin of copperas1

1400–50; late Middle English coperas, variant of Middle English coperose < Medieval Latin ( aqua ) cuprōsa copperish (water). See copper 1, -ose 1
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Word History and Origins

Origin of copperas1

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Police in Copperas Cove, where the attack occurred, refused to release an incident report, but a story in the Killeen Daily Herald said officers observed several fresh injuries on Short.

Read more on Salon

"There doesn't seem to be much to it," said Brian Novie, who lives in nearby Copperas Cove.

Read more on BBC

When she discovered she was pregnant, she traveled to an abortion clinic in Austin, about 60 miles south of where she lived in Copperas Cove, a city of 37,000 where nearly everyone works on Fort Hood, the nearby military base.

Read more on New York Times

For months, G and Cecil had been trying to find a place of their own in Copperas Cove, but without any credit history, they were poor candidates.

Read more on New York Times

She wanted to party and celebrate her graduation, leave Copperas Cove, get an apartment of her own and comfortably support herself.

Read more on New York Times

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copper arseniteCopperas Cove