上颚正门齿 shàng'èzhèngménchǐ maxillary central incisor Origin Definitions Defs Strokes Stroke Words Sentences Sents 上颚 上顎 shàng'è noun upper jaw The upper jaw or maxilla of a person or vertebrate animal; also the hard palate forming the upper wall of the mouth.正 zhèng adjective central situated in the middle; central; main; in the center门齿 門齒 ménchǐ incisor any of the teeth in the front of the mouth