: 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
Examples of lava in a Sentence
a flow of molten lava
Recent Examples on the Web
The hardened lava flow is still visible aboveground; underwater, though, the reefs have rebounded.
—
Gisela Williams, Travel + Leisure, 8 Jan. 2026
Subtle dark patches on the lunar surface betray the presence of colossal basaltic plains, where lava flows coated vast swathes of Earth's natural satellite, before solidifying in the extreme environment of space.
—Anthony Wood, Space.com, 5 Jan. 2026
That made more sense because that’s where the lava of the body is.
—David Canfield, HollywoodReporter, 22 Dec. 2025
The volcano has been very active in December, with intense lava fountain episodes.
—Janet Loehrke, USA Today, 20 Dec. 2025
See All Example Sentences for lava
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Gisela Williams, Travel + Leisure, 8 Jan. 2026
Subtle dark patches on the lunar surface betray the presence of colossal basaltic plains, where lava flows coated vast swathes of Earth's natural satellite, before solidifying in the extreme environment of space.
—Anthony Wood, Space.com, 5 Jan. 2026
That made more sense because that’s where the lava of the body is.
—David Canfield, HollywoodReporter, 22 Dec. 2025
The volcano has been very active in December, with intense lava fountain episodes.
—Janet Loehrke, USA Today, 20 Dec. 2025
See All Example Sentences for lava
Cite this Entry
“Lava.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lava. Accessed 9 Jan. 2026.
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