水蕴草 shuǐyùncǎo waterweed Origin Definitions Defs Strokes Stroke Words Sentences Sents 水 shuǐ noun water water; a liquid, juice, or lotion蕴草 蘊草 yùncǎo waterweed any of various species of aquatic plants used in aquariums to oxygenate and purify water, such as water milfoil or brazilian elodea