lava
/ˈlɑːvə/noun
mass noun
- hot molten or semi-fluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this熔岩; 火山岩。
词源
mid 18th cent.: from Italian (Neapolitan dialect)， denoting the lava stream from Vesuvius， but originally denoting a stream caused by sudden rain， from lavare 'to wash'， from Latin.