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hydrodynamically
hydrodynamicist
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hydroelectric
hydroelectric turbine
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hydroflumethiazide
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hydrogen azide
hydrogen bomb
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hydrofluoric acid definitions

WordNet (r) 3.0 (2005)

n
1: a weak poisonous liquid acid; formed by solution of hydrogen fluoride in water

Merriam Webster's

noun Etymology: International Scientific Vocabulary Date: 1830 an aqueous solution of hydrogen fluoride HF that is a weak poisonous acid, that attacks silica and silicates, and that is used especially in finishing and etching glass

Oxford Reference Dictionary

n. Chem. a solution of the colourless liquid hydrogen fluoride in water. Usage: Chem. formula: HF

Webster's 1913 Dictionary

Hydrofluoric Hy`dro*flu*or"ic, a. [Hydro-, 2 + fluoric.] (Chem.) Pertaining to, or containing, hydrogen and fluorine; fluohydric; as, hydrofluoric acid. Hydrofluoric acid (Chem.), 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.



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