from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless, fuming, corrosive, dangerously poisonous aqueous solution of hydrogen fluoride, HF, used to etch or polish glass, pickle certain metals, and clean masonry.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A solution of hydrogen fluoride, HF, in water; it is a weak but very corrosive acid, used in the production of fluorine compounds, and in metallurgy.
from the GNU version of the Collaborative International Dictionary of English
- adj. a colorless, mobile, volatile liquid, HF, very corrosive in its action, and having a strong, pungent, suffocating odor. It is produced by the action of sulphuric acid on fluorite, and is usually collected as a solution in water. It attacks all silicates, as glass or porcelain, is the agent employed in etching glass, and is preserved only in vessels of platinum, lead, caoutchouc, or gutta-percha.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a weak poisonous liquid acid; formed by solution of hydrogen fluoride in water
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