水牛儿 shuǐniūr snail Origin Definitions Defs Strokes Stroke Words Sentences Sents 水 shuǐ noun water water; a liquid, juice, or lotion牛 niū [bound form] (bound form) used in words like 水牛儿 shuǐniūr (snail)儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.