from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A blue, crystalline hydrous solution of copper sulfate, CuSO4·5H2O, one of the most important industrial copper salts, used in insecticides, germicides, and hair dyes and in the processing of leather and textiles.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. copper sulfate
from the GNU version of the Collaborative International Dictionary of English
- adj. sulphate of copper, a violet blue crystallized salt, used in electric batteries, calico printing, etc.
- n. See under Blue.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. hydrated blue crystalline form of copper sulfate
Sorry, no etymologies found.
Above me clouds scuddled across the blue vitriol of the April sky, and the sun slumped toward the horizon, painting the clouds’ soft bellies golden.
And we know, also, that no more copper can be obtained in this way from the blue vitriol than is actually used up in preparing it; and, further, that all the iron which is apparently converted into copper can be got out of the residual solution by appropriate methods, if such be desired; so that the facts really support DALTON'S theory rather than the alchemical doctrines.