The meaning of LAVA is molten rock that issues from a volcano or from a fissure in the surface of a planet (such as earth) or moon; also : such rock that has cooled and hardened.

LAVA definition: the molten, fluid rock that issues from a volcano or volcanic vent. See examples of lava used in a sentence.

The solid volcanic rock resulting from subsequent cooling of the molten material is often also called lava. A lava flow is an outpouring of lava during an effusive eruption. (An explosive eruption, by contrast, …

Jan 5, 2026 · Lava, magma (molten rock) emerging as a liquid onto Earth’s surface. The term ‘lava’ is also used for the solidified rock formed by the cooling of a molten lava flow.

Add to word list earth science hot liquid rock that comes out of a volcano, or the solid rock formed when liquid rock cools (Definition of lava from the Cambridge Academic Content Dictionary © Cambridge …

Lava is the very hot liquid rock that comes out of a volcano.

Definition of lava noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Under the earth's crust is molten rock called magma, along with explosive gases. Under the right conditions, the gases send the magma up through volcanoes, which act as vents in the surface of …

Define lava. lava synonyms, lava pronunciation, lava translation, English dictionary definition of lava. n. 1. Molten rock that reaches the earth's surface through a volcano or fissure. 2. The rock formed by …

The Simple English Wiktionary has a definition for: lava. Lava is magma, hot molten rock that flows through holes in the Earth's crust and onto the surface. Like magma, lava can be either viscous …