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more about fissure
fissure |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Fissure \Fis"sure\, v. t. To cleave; to divide; to crack or fracture. From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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. {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. From WordNet r 1.6 [wn]: fissure n 1: a long narrow depression in a surface [syn: {crevice}, {cranny}, {crack}, {chap}] 2: a long narrow opening [syn: {crack}, {cleft}, {crevice}, {scissure}] 3: (anatomy) a long narrow slit or groove that divides an organ into lobes v : break into fissures or fine cracks
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