灯胆 dēngdǎn lightbulb Origin Definitions Defs Strokes Stroke Words Sentences Sents 灯 燈 dēng noun lamp lamp; lantern; light; any device used for illumination胆 膽 dǎn liner The inner part of an object used for holding air or water, such as the bladder of a ball or the glass lining of a thermos flask.