盐酸草 yánsuāncǎo creeping oxalis Definitions Defs Origin Strokes Stroke Words Sentences Sents 盐酸 鹽酸 yánsuān hydrochloric acid 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 qīnglǜsuān or 盐强水 yánqiángshuǐ.草 cǎo noun grass grass; straw; herbs; plants with non-woody stems