lava

noun

la·​va ˈlä-və How to pronounce lava (audio) ˈla- How to pronounce lava (audio)
: 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
lavalike adjective

Examples of lava in a Sentence

a flow of molten lava
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Ancient volcanic activity shaped the lunar crust of Earth’s own Moon — lunar maria, basaltic plains visible on the Moon, are the result of lava flows filling basins that were left by meteorite impacts. Jack Knudson, Discover Magazine, 1 Apr. 2025 One realm features a volcano with simulated lava flow. Anne Gelhaus, Mercury News, 30 Mar. 2025 Terraces shaped by ancient lava flows limit vineyard space, and manual labor remains the only option in many areas. Rachel King, Forbes.com, 30 Mar. 2025 Picture a volcanic eruption – not of lava, but of fine, murky sediments expanding throughout the water column, affecting everything in its path. Alexus Cazares-Nuesser, The Conversation, 25 Mar. 2025 See All Example Sentences for lava

Word History

Etymology

Italian, ultimately from Latin labes fall; akin to Latin labi to slide — more at sleep

First Known Use

1759, in the meaning defined above

Time Traveler
The first known use of lava was in 1759

Cite this Entry

“Lava.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lava. Accessed 24 Apr. 2025.

Kids Definition

lava

noun
la·​va ˈläv-ə How to pronounce lava (audio) ˈlav- How to pronounce lava (audio)
: melted rock coming from a volcano
also : such rock that has cooled and hardened

More from Merriam-Webster on lava

Last Updated: - Updated example sentences
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