First Known Use: 14th century
Dictionary
1fissure
noun fis·sure \ˈfi-shər\
: a narrow opening or crack
Full Definition of FISSURE
1
: a narrow opening or crack of considerable length and depth usually occurring from some breaking or parting
2
a : 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>
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Origin of FISSURE
Middle English, from Middle French, from Latin fissura, from fissus
Other Geology Terms
2fissure
verb
fis·suredfis·sur·ing
Definition of FISSURE
transitive verb
intransitive verb
First Known Use of FISSURE
1656
Rhymes with FISSURE
FISSURE Defined for Kids
fissure
noun fis·sure \ˈfi-shər\
Definition of FISSURE for Kids
: a narrow opening or crack
Medical Dictionary
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 d : anterior median fissure; also : posterior median septum
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
—fis·sured \ˈfish-ərd, British also ˈfish-yu̇rd\ adjective
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