泄洪道 xièhóngdào spillway Origin Definitions Defs Strokes Stroke Words Sentences Sents 泄洪 xièhóng to discharge floodwater To release or discharge water to control a flood; also written as 泄洪 xièhóng.道 dào noun channel channel; conduit; passage (e.g. for water, air, or biological fluids)