牙印儿 yáyìnr teeth marks Origin Definitions Defs Strokes Stroke Words Sentences Sents 牙印 yáyìn bite marks marks left by the teeth on something; teeth marks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.