lava

Definition of Lava in English :

1. lava

rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface

WordNet Lexical Database for English. Princeton University. 2010.

Lava

noun

1.

magma emanating from volcanoes and other vents

2.

any extrusive igneous rock formed by the cooling and solidification of molten lava

noun

1.

melted rock issuing from a volcano

2.

such rock when solidified by cooling

n.

1. Molten rock that reaches the earth's surface through a volcano or fissure.

2. The rock formed by the cooling and solidifying of molten rock.