a colorless, fuming, corrosive liquid, HF, an aqueous solution of hydrogen fluoride, used chiefly for etching glass.
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Origin of hydrofluoric acid
First recorded in 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for hydrofluoric acid
There was a big one on Nifflheim, armored against the fluorine atmosphere and the hydrofluoric-acid rains.The Cosmic Computer|Henry Beam Piper
British Dictionary definitions for hydrofluoric acid
/ (ˌhaɪdrəʊfluːˈɒrɪk) /
the colourless aqueous solution of hydrogen fluoride: a strong acid that attacks glass
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Science definitions for hydrofluoric acid
[ hī′drō-flur′ĭk, -flôr′- ]
A colorless, fuming, aqueous solution of hydrogen fluoride. It is corrosive and is used to etch or polish glass, to clean certain metals before plating, and to clean masonry. It is very poisonous.
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