noun
a colorless corrosive gas (HCl)
• Hypernyms: ↑acid
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noun : a colorless pungent nonflammable poisonous gas HCl that fumes strongly in moist air and yields hydrochloric acid when dissolved in water and that is obtained primarily as a by-product of the chlorination of organic compounds or by burning hydrogen in chlorine
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a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
[1865-70]
Useful english dictionary. 2012.