fissure

noun

Definition of fissurenext
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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“Fissure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fissure. Accessed 21 Sep. 2023.

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More from Merriam-Webster on fissure

Nglish: Translation of fissure for Spanish Speakers

Britannica English: Translation of fissure for Arabic Speakers

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