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a colorless, fuming, corrosive liquid, HF, an aqueous solution of hydrogen fluoride, used chiefly for etching glass.
the colourless aqueous solution of hydrogen fluoride: a strong acid that attacks glass
hydrofluoric acid
(hī’drō-flr’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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