熔岩流 róngyánliú lava flow Origin Definitions Defs Strokes Stroke Words Sentences Sents 熔岩 róngyán noun lava molten rock that flows from a volcano or fissure in the earth; the rock formed when this material cools and solidifies流 liú noun stream a stream of water or a continuous moving mass of something resembling a liquid, such as air or electricity