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;
Cerebral fissures (Anat.),
Fissure needle (Surg.),
Fissure of rolando (Anat.),
Fissure of Sylvius (Anat.),
Fissure vein (Mining),
v. t. To cleave; to divide; to crack or fracture. [ 1913 Webster ]
‖n. [ NL., dim. of L. fissura a fissure. ] (Zool.) A genus of marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex; -- called also
n. a natural family of marine limpets.