lava/ˈlɑ:və; `lɑvə/ n[U]1 hot liquid rock that comes out of a volcano （火山喷出的）熔岩 a stream of lava 熔岩流. =>illus at volcano 见volcano插图.2 type of rock formed from this when it has cooled and hardened 火山岩.
牛津英汉双解词典