copperas
Americannoun
noun
Etymology
Origin of copperas
1400–50; late Middle English coperas, variant of Middle English coperose < Medieval Latin ( aqua ) cuprōsa copperish (water). See copper 1, -ose 1
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.
Early mine operators realized that they could also extract copper from copperas.
From Washington Times ● Jul. 3, 2017
Buy at a druggist's four ounces of the best blue Aleppo nut-galls; half an ounce of green copperas; and half an ounce of clean, white gum-arabic.
From The Ladies' Guide to True Politeness and Perfect Manners or, Miss Leslie's Behaviour Book by Eliza Leslie
I am tired of nosing drains and buying copperas and hounding the latent plumber that he adjust the water-pipes.
From Rosemary and Rue by Amber
No injury has ever arisen to pear trees by a free use of a saturated solution of copperas.
From American Pomology Apples by J. A. Warder
The solution of iron in spirit of vitriol produces green copperas; which being calcined, becomes a red substance, called colcothar.
From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Joseph Priestley
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