hydrochloric adjective. [hʌɪdrǝ(ʊ)'klɒrɪk, -'klɔ:rɪk] E19.
[from HYDRO- + CHLORIC.]
Chemistry. hydrochloric acid, a colourless or faintly yellow liquid that is an aqueous solution of the gas hydrogen chloride, HCl, and a strong, highly corrosive acid; formerly called muriatic acid, spirit of salt.

■ hydrochlorate noun a chloride; a hydrochloride: only in 19.

■ hydrochloride noun a compound of hydrochloric acid with an organic base or (formerly) with an element E19.

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