hydrochloric acid; an aqueous solution of hydrogen chloride (HCl). A strong inorganic acid used widely in industry and medicine; also known as 氢氯酸 qīng​lǜ​suān or 盐强水 yán​qiáng​shuǐ.

(bound form) any chemical compound formed from the reaction of an acid with a base, consisting of a metal ion and an acid radical