fissure

noun
fis·​sure | \ ˈfi-shər \

Definition of fissure

 (Entry 1 of 2)

1 : a narrow opening or crack of considerable length and depth usually occurring from some breaking or parting a fissure in the earth's crust
2a : a natural cleft between body parts or in the substance of an organ
b : a break or slit in tissue usually at the junction of skin and mucous membrane
3 : a separation or disagreement in thought or viewpoint : schism fissures in a political party

fissure

verb
fissured; fissuring

Definition of fissure (Entry 2 of 2)

transitive verb

: to break into fissures : cleave

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Synonyms for fissure

Synonyms: Noun

check, chink, cleft, crack, cranny, crevice, rift, split

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Examples of fissure in a Sentence

Noun

a fissure in the Earth's crust a deep fissure in the ice

Recent Examples on the Web: Noun

The movement has also exposed fissures in his political coalition, as some lawmakers and ministers have called for Mr. Macron to reconsider his decision to abolish a wealth tax. Noemie Bisserbe, WSJ, "Lull in French Protests Offers Macron a Brief Respite," 16 Dec. 2018 Amid the fissures in the Gulf, the base is key leverage for Qatar to maintain influence in Washington. NBC News, "AP investigation: A Trump fundraiser's secret lobbying effort to win $1B in business," 21 May 2018 The last time Kilauea opened up fissures in a residential area was in 1960, just outside the town of Kapoho. Rong-gong Lin Ii, latimes.com, "Kilauea volcano flexes its muscle, destroying homes and forcing evacuations," 8 May 2018 As many as 10 fissures have opened up since the eruption started late Thursday afternoon, scientists said, adding that one of those vents has gone dormant. Mike Arroyo, Fox News, "Hawaii's volcanic eruption has destroyed at least 26 homes, officials say," 2 Oct. 2018 By Sunday afternoon, 17 volcanic fissures had opened, pouring lava into the area, according to the Hawaii County Civil Defense Emergency System. Dakin Andone, CNN, "Hawaii residents scrambling for masks the government says won't help them," 13 May 2018 Hawaii County Mayor Harry Kim has said that rivers of molten rock spewed from volcanic fissures at the foot of Kilauea have engulfed roughly 600 homes. Jolyn Rosa, The Christian Science Monitor, "Trump approves disaster aid for Kilauea Volcano victims," 15 June 2018 Hill's family had packed up their furniture and valuables and left their property convinced the lava erupting from fissures in the area would consume their slice of paradise. Nicole Chavez, CNN, "More evacuations ordered in Hawaii as volcano activity intensifies," 26 May 2018 In recent days, lava fountains hundreds of feet tall began spurting from fissures, putting Earth’s fiery power on full display. Maya Wei-haas, Smithsonian, "A Brief Glossary of Volcano Vocab," 25 May 2018

Recent Examples on the Web: Verb

An early morning alert issued by the U.S. Geological Survey reported sporadic eruptions from three Kilauea volcano fissures shooting lava 180 feet into the air. Matthew Cappucci, Washington Post, "Fine, glass tendrils — Pele’s hair — are flying around Big Island after explosive eruption," 11 June 2018 Over the past week, the lava erupting from Hawaii’s Kilauea volcano fissures advanced through two small residential subdivisions along Kapoho Bay, reaching the Pacific Ocean, and wiping out nearly a hundred homes. Alan Taylor, The Atlantic, "Photo Updates From Kilauea: Dozens More Homes Destroyed," 6 June 2018 The trunk was fissured at the base, creating a seam wide enough to slip into—in other words, an absolutely perfect hiding place. David Gilbert, The New Yorker, "Fungus," 4 June 2017 This is far from the first time that fissures within the Republican party over immigration have been on public display. Chris Cillizza, CNN, "The biggest political story no one is talking about," 17 May 2018 About 100 million years ago, shifts in tectonic plates caused the region’s foundational limestone to begin to crack and fissure. Jennifer Billock, Smithsonian, "Descend into the World’s Iciest Gateway to Hell," 30 Aug. 2017 Congressional Republicans return to work Monday after the Memorial Day recess facing enormous pressure to make progress on replacing the Affordable Care Act — a years-long campaign promise — but also fissures within the party about how to do so. John Fritze, baltimoresun.com, "Maryland advocates resist efforts to target Medicaid in federal funding fights," 3 June 2017 The lodge’s eight-week season begins in June, just as the pack ice that blankets the Northwest Passage begins to fissure and melt. Ashlea Halpern, WIRED, "Need a Memorial Day to Remember? Ice-Bike the Northwest Passage," 24 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fissure.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fissure

Noun

14th century, in the meaning defined at sense 1

Verb

1656, in the meaning defined at transitive sense

History and Etymology for fissure

Noun

Middle English, borrowed from Middle French & Latin; Middle French fissure, borrowed from Latin fissūra "splitting, crack, opening," from fissus, past participle of findere "to split, cleave" + -ūra -ure — more at bite entry 1

Verb

derivative of fissure entry 1

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Statistics for fissure

Last Updated

16 Jan 2019

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Time Traveler for fissure

The first known use of fissure was in the 14th century

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More Definitions for fissure

fissure

noun

English Language Learners Definition of fissure

: a narrow opening or crack

fissure

noun
fis·​sure | \ ˈfi-shər \

Kids Definition of fissure

: a narrow opening or crack

fissure

noun
fis·​sure | \ ˈfish-ər, British also ˈfish-yu̇r\

Medical Definition of fissure

1 : a natural cleft between body parts or in the substance of an organ: as
a : any of several clefts separating the lobes of the liver
b : any of various clefts between bones or parts of bones in the skull
c : any of the deep clefts of the brain especially : one of those located at points of elevation in the walls of the ventricles — compare sulcus
2 : a break or slit in tissue usually at the junction of skin and mucous membrane fissure of the lip
3 : a linear developmental imperfection in the enamel of a tooth

Other Words from fissure

fissured \ ˈfish-​ərd, British also ˈfish-​yu̇rd \ adjective

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More from Merriam-Webster on fissure

Rhyming Dictionary: Words that rhyme with fissure

Thesaurus: All synonyms and antonyms for fissure

Spanish Central: Translation of fissure

Nglish: Translation of fissure for Spanish Speakers

Britannica English: Translation of fissure for Arabic Speakers

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