颚骨 ègǔ jawbone Origin Definitions Defs Strokes Stroke Words Sentences Sents 颚 顎 è noun jaw the jaw or jawbone of a vertebrate, including the upper jaw and lower jaw; also the mouthparts of certain arthropods used for grasping or chewing骨 gǔ noun bone bone; the hard tissue that forms the skeleton of humans and vertebrate animals