Relating to or denoting hydrofluoric acid, a highly corrosive acid containing fluorine and hydrogen.
From 'fluor-' (relating to fluorine) combined with 'hydric' (relating to hydrogen), creating a compound adjective that describes acids containing both elements.
Hydrofluoric acid (fluorhydric acid) is so corrosive that it actually dissolves glass—one of the only common substances that does—making it exceptionally dangerous and one of the few acids that must be stored in plastic containers!
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