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.
Michael Mann–style shots of characters considering their lives while staring into the middle distance at crashing waves or steaming fields of lava are beautiful and plentiful. Roxana Hadadi, Vulture, 1 Aug. 2025 This process occurs when liquid water wells up to the surface, similar to how lava flows out of fissures on Earth. Jack Knudson, Discover Magazine, 30 July 2025 Scientists had been predicting the eruption for weeks, noting that the volcano's crater had been gradually filling with lava and the mountain had been emitting ash plumes. Nick Mordowanec barney Henderson john Feng, MSNBC Newsweek, 30 July 2025 Ideally, a chocolate molten lava cake with some ice cream on top is my go-to. Josh Rivera, USA Today, 30 July 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 19 Aug. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!