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.
The Bolaven Plateau is a place where remnants of ancient volcanic activity, such as lava cliffs and extinct volcanic craters, coexist with lush natural landscapes that feature breathtaking waterfalls, deep gorges, and dramatic riverscapes. Jasmine Ting, Condé Nast Traveler, 20 Mar. 2026 But recreational hikes still turn into instructional moments for Krebs, who stands maybe 5 feet 3 inches and could make a living off 100 barren miles of lava rock and lizards. Andrew McKean, Outdoor Life, 19 Mar. 2026 Nighttime is ideal for viewing the molten lava from the Halemaʻumaʻu crater, and the best viewing spots of the glowing crater include the Kilauea Overlook, Waldron Ledge and the Devastation Trail parking area. Ben Davidson, Mercury News, 16 Mar. 2026 As the lava advanced, the volcano erupted in a series of rare explosive bursts at the time. Jessica Mekles, FOXNews.com, 13 Mar. 2026 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 26 Mar. 2026.

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

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