from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An unstable inorganic acid, HMnO4, existing only in dilute solution. Its purple aqueous solution is used as an oxidizing agent.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the acid, HMnO4, known only as its salts, the permanganates
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an unstable purple acid (HMnO4) known only in solution or of permanganate salts
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