牙关紧闭症 yáguānjǐnbìzhèng lockjaw Origin Definitions Defs Strokes Stroke Words Sentences Sents 牙关紧闭 牙關緊閉 yáguānjǐnbì trismus Difficulty opening the mouth, such as lockjaw, caused by inflammation or spasms of the jaw muscles and surrounding tissues症 zhèng affixnoun disease (bound form) disease; illness; medical symptoms