'Fissure vein' definitions:
Definition of 'Fissure vein'
From: 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]