Search Dictionary
Definition of fissure

fissure

/ˈfɪʃ.ər/
fis · sure

Plural:fissures
•
Adjective:fissural
•
Past Simple:fissured
•
Past Participle:fissured
•
Present Participle:fissuring
JUMP TO:

fissure Lexical Profile

fissure Game Scores & Validity

• noun

1

A long, narrow opening or line of breakage made by cracking or splitting, especially in rock or earth.

Example

"Geologists carefully measured the deep fissure that opened across the valley floor after the earthquake."


2

A state of incompatibility or disagreement; a division or split between groups or within an organization.

Example

"The policy debate exposed a growing ideological fissure within the governing coalition."


3

A natural groove, furrow, or deep sulcus on the surface of a bodily organ, such as the cerebral cortex or liver, or a tear in skin or mucous membrane.

Example

"The longitudinal fissure divides the human brain into its left and right cerebral hemispheres."

Synonyms
View all synonyms for fissure
Antonyms
View all antonyms for fissure

• verb

1

To split, crack, or break into long, narrow openings.

Example

"Months of severe drought caused the dry clay soil to fissure across the entire plain."

Synonyms
View all synonyms for fissure

• Rhymes for fissure

Word Origin & Etymology

Borrowed in the late 14th century from Old French fissure or directly from Latin fissura ('a cleft, crack, or chink'), derived from the past participle stem of findere ('to split or cleave').

Cite this Entry


Wordmom. (2026). Definition of Fissure. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/fissure
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Dictionary & Reference
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.