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
Sorry, no etymologies found.
While the Sky Queen was being thoroughly aired, Torn questioned every member of the crew in charge of the big ship to find out how the hydrofluoric acid had become uncapped.