as in crevice
an irregular usually narrow break in a surface created by pressure
lava flows up through a fissure in the earth's crust
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Recent Examples of fissure
Webcam images show a line of fissures erupting lava fountains feeding a flow within the summit caldera.
—
David Bressan, Forbes, 24 Dec. 2024
The fissures were on full display in the state's primary, which shifted power rightward towards the growing Wyoming Freedom Caucus.
—Cy Neff, USA TODAY, 5 Nov. 2024
On Iceland's Reykjanes Peninsula, this is causing fissures to open in the curst, allowing lava to well up from a heat source deep in Earth's mantle.
—Tom Yulsman, Discover Magazine, 31 Dec. 2024
This easy, 2-mile loop wanders through clusters of tan, sandstone boulders, the most famous of which is Split Rock, a 20-foot tall, rounded boulder with a sinuous fissure right through its heart.
—Graham Averill, Outside Online, 27 Dec. 2024
See all Example Sentences for fissure 
David Bressan, Forbes, 24 Dec. 2024
The fissures were on full display in the state's primary, which shifted power rightward towards the growing Wyoming Freedom Caucus.
—Cy Neff, USA TODAY, 5 Nov. 2024
On Iceland's Reykjanes Peninsula, this is causing fissures to open in the curst, allowing lava to well up from a heat source deep in Earth's mantle.
—Tom Yulsman, Discover Magazine, 31 Dec. 2024
This easy, 2-mile loop wanders through clusters of tan, sandstone boulders, the most famous of which is Split Rock, a 20-foot tall, rounded boulder with a sinuous fissure right through its heart.
—Graham Averill, Outside Online, 27 Dec. 2024
See all Example Sentences for fissure
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Cite this Entry
“Fissure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fissure. Accessed 1 Feb. 2025.
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