fissure

Noun · Verb
Synonyms: crevicecrannycrackchapcleftscissure

WordNet 3.0

Noun (3)

  1. a long narrow depression in a surfaceSynonyms: crevicecrannycrackchap
  2. a long narrow openingSynonyms: crackcleftcrevicescissure
  3. (anatomy) a long narrow slit or groove that divides an organ into lobes

Verb (1)

  1. break into fissures or fine cracks
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Webster's Dictionary (GCIDE)

Fissure \Fis"sure\, n. [L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.] A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. [1913 Webster]

Cerebral fissures (Anat.), the furrows or clefts by which the surface of the cerebrum is divided; esp., the furrows first formed by the infolding of the whole wall of the cerebrum.

Fissure needle (Surg.), a spiral needle for catching together the gaping lips of wounds. --Knight.

Fissure of rolando (Anat.), the furrow separating the frontal from the parietal lobe in the cerebrum.

Fissure of Sylvius (Anat.), a deep cerebral fissure separating the frontal from the temporal lobe. See Illust. under Brain.

Fissure vein (Mining), a crack in the earth's surface filled with mineral matter. --Raymond. [1913 Webster]

Fissure \Fis"sure\, v. t. To cleave; to divide; to crack or fracture. [1913 Webster]
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