fissure


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Related to fissure: piles, fistula

fissure

1. Anatomy a narrow split or groove that divides an organ such as the brain, lung, or liver into lobes
2. a small unnatural crack in the skin or mucous membrane, as between the toes or at the anus
3. a minute crack in the surface of a tooth, caused by imperfect joining of enamel during development

fissure

[′fish·ər]
(geology)
A high, narrow cave passageway.
An extensive crack in a rock.
(metallurgy)
A small cracklike discontinuity with a slight opening or displacement of the fracture surfaces.
References in classic literature ?
Saxon could see Hall pointing down across the fissure and imagined he was showing some curious thing to Billy.
One of these precipices, or cliffs, is curiously worn by time and weather so as to have the appearance of a ruined fortress, with towers and battlements, beetling high above the river, while two small cascades, one hundred and fifty feet in height, pitch down from the fissures of the rocks.
No fire was visible any where, but gusts of sulphurous steam issued silently and invisibly from a thousand little cracks and fissures in the crater, and were wafted to our noses with every breeze.
Some of the boys thrust long slips of paper down into holes and set them on fire, and so achieved the glory of lighting their cigars by the flames of Vesuvius, and others cooked eggs over fissures in the rocks and were happy.
At night, when the remainder of the beggar horde slept, when there was no longer a window lighted in the dingy façades of the Place, when not a cry was any longer to be heard proceeding from those innumerable families, those ant-hills of thieves, of wenches, and stolen or bastard children, the merry tower was still recognizable by the noise which it made, by the scarlet light which, flashing simultaneously from the air-holes, the windows, the fissures in the cracked walls, escaped, so to speak, from its every pore.
The eye might have gazed into the crater's gaping abysses, and followed the capricious fissures which wound through the immense plains.
The visually-guided robot will help researchers to make a 3D map of a fissure, a linear vent in a volcano through which there is eruption of lava on the inactive Kilauea volcano in Hawaii, reported NDTV.
van Someren rediscovered the species at the same locality, associated with a vertical fissure in a large rock at the summit of Ukasi Hill (Copeland et al.
SYSTEM's results show that no clinical evidence exists to substantiate the belief that high-viscosity glass-ionomers are inferior to the current gold standard when placing restorations in posterior load bearing teeth and when sealing pit and fissure to prevent the development of tooth caries.
An isolated hand in the Gallery of Dots was similarly ergonomically fitted to an otherwise smooth surface, the palm placed over a slight concave depression and the fingers 'gripping' a boss in the wall next to a natural fissure (our 'ergonomic, 'gripping' and 'right of fissure' positions) (Figure 8).
If a fissure doesn't heal on its own, it can usually be treated and recurrences prevented with conservative measures.
Maher Selim, the president of Al Beit Al Fany for Theatre, inaugurated the play The Moon's Fissure on 7 March.