骨头节儿 gǔtoujiér joint Origin Definitions Defs Strokes Stroke Words Sentences Sents 骨头节 骨頭節 gǔtoujié joint articulation between two bones in the body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.