Definition of Fissure

1. Noun. A long narrow depression in a surface.

Exact synonyms: Chap, Crack, Cranny, Crevice
Generic synonyms: Depression, Impression, Imprint



2. Verb. Break into fissures or fine cracks.
Generic synonyms: Crack

3. Noun. A long narrow opening.
Exact synonyms: Cleft, Crack, Crevice, Scissure
Specialized synonyms: Chap, Chink, Crevasse, Fatigue Crack, Break, Fault, Faulting, Fracture, Geological Fault, Shift, Rift, Slit, Split, Vent, Volcano
Generic synonyms: Gap, Opening
Derivative terms: Crack

4. Noun. (anatomy) a long narrow slit or groove that divides an organ into lobes.
Generic synonyms: Groove, Vallecula
Specialized synonyms: Sulcus, Hilum, Hilus
Category relationships: Anatomy, General Anatomy

Definition of Fissure

1. n. A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock.

2. v. t. To cleave; to divide; to crack or fracture.

Definition of Fissure

1. Noun. a crack or opening, as in a rock ¹

2. Verb. To split forming fissures. ¹

¹ Source: wiktionary.com

Definition of Fissure

1. to split [v -SURED, -SURING, -SURES] - See also: split

Medical Definition of Fissure

1. Any cleft or groove, normal or otherwise, especially a deep fold in the cerebral cortex which involves the entire thickness of the brain wall. Origin: L. Fissura This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Fissure Pictures

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Lexicographical Neighbors of Fissure

fissura pterygoidea
fissura pterygomaxillaris
fissura pterygopalatina
fissura secunda cerebelli
fissura sphenopetrosa
fissura transversa cerebelli
fissura transversa cerebri
fissura tympanomastoidea
fissura tympanosquamosa
fissurae cerebelli
fissural
fissural cyst
fissuration
fissurations
fissure (current term)
fissure bur
fissure caries
fissure for ligamentum teres
fissure in ano
fissure of Rolando
fissure of Sylvius
fissure of ligamentum venosum
fissure of round ligament of liver
fissure of venous ligament
fissure sealant
fissure sign
fissured
fissured fracture

Literary usage of Fissure

Below you will find example usage of this term as found in modern and/or classical literature:

1. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"The parieto-occipital fissure is only seen to a slight extent on the ... The portion on the outer surface is called the external parieto-occipital fissure, ..."

2. Anatomy, Descriptive and Surgical: Descriptive and Surgical by Henry Gray (1897)
"Longitudinal fissure. Under surface of rostrum of corpus callosum and its ... The longitudinal fissure partially separates the two hemispheres from each ..."

3. Journal of Nervous and Mental Disease by Philadelphia Neurological Society, American Neurological Association, Chicago Neurological Society, New York Neurological Association (1886)
"The calcarine fissure extends to the extremity of the occipital lobe, communicating in front imperfectly as just stated, with the occipital, but completely ..."

4. Medical Lexicon: A Dictionary of Medical Science : Containing a Concise by Robley Dunglison (1868)
"fissure OF THE UE'LIX. A small vertical fissure of the helix of the ear, ... fissure OF ROLAN'DO. A transverse fissure placed between two superior cerebral ..."

5. Philadelphia Medical Times (1882)
"The first frontal fissure was quite long ; it was broken by a single bridge, ... The secondary fissure was well marked, so much so that it seemed almost to ..."

6. Journal of Nervous and Mental Disease by American Neurological Association, Philadelphia Neurological Society, Chicago Neurological Society, New York Neurological Association, Boston Society of Psychiatry and Neurology (1886)
"The calcarine fissure extends to the extremity of the occipital lobe, communicating in front imperfectly as just stated, with the occipital, but completely ..."

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