髌骨 bìngǔ kneecap Origin Definitions Defs Strokes Stroke Words Sentences Sents 髌 髕 bìn kneecap (bound form) the kneecap; also known as 髌骨 bìngǔ or 膝盖骨 xīgàigǔ骨 gǔ noun bone bone; the hard tissue that forms the skeleton of humans and vertebrate animals