下颌下腺 xiàhéxiàxiàn submandibular gland Origin Definitions Defs Strokes Stroke Words Sentences Sents 下颌 下頜 xiàhé lower jaw the lower jaw or mandible; also called 下巴 xiàba or 下颚 xià'è下 xià locative below low place; bottom; underneath; (bound form) used after a noun to indicate a scope, condition, or time腺 xiàn noun gland gland; organ or group of cells that produces and secretes chemical substances