• WordNet 3.6
    • v fissure break into fissures or fine cracks
    • n fissure (anatomy) a long narrow slit or groove that divides an organ into lobes
    • n fissure a long narrow opening
    • n fissure a long narrow depression in a surface
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Webster's Revised Unabridged Dictionary
    • n Fissure A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock.
    • v. t Fissure To cleave; to divide; to crack or fracture.
    • ***
Century Dictionary and Cyclopedia
    • n fissure A narrow longitudinal opening or groove; a cleft, crack, or chink; a line of separation in any substance produced by parting or cleavage: as, a fissure in the earth or in a rock.
    • n fissure In surgery and anatomy, any solution of continuity in a bone, membrane, or muscle, or a natural division or groove between adjoining parts of like substance; a fissura: a sulcus: as, the longitudinal fissure of the brain, separating the hemispheres.
    • n fissure In entomology: A deep, sharp longitudinal depression of a surface.
    • n fissure A very deep angular notch in a margin, almost dividing the part or organ.
    • n fissure In botany, the opening between segments of a cleft leaf or other organ; a slit formed by the dehiscence of an anther or a capsule.
    • n fissure In heraldry, a bearing resembling the bend sinister, but having one fourth the width of the bend, and capable of being borne on any part of the shield, sometimes in connection with others, sometimes with a bend sinister, a scarpe, or the like. Also called staff.
    • n fissure In pathology, a crack-like sore or ulcer: as, an anal fissure.
    • n fissure See the adjectives.
    • fissure To cleave; split; divide; crack or fracture.
    • fissure To crack; cleave; split open.
    • n fissure A longitudinal depression on the under surface of the liver.
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Chambers's Twentieth Century Dictionary
    • n Fissure fish′ūr a narrow opening or chasm: a cleft, slit, or furrow: any groove or sulcus, esp. one of the furrows on the surface of the brain, as the longitudinal fissure separating the hemispheres
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Webster's Revised Unabridged Dictionary
L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite,: cf. F. fissure,
Chambers's Twentieth Century Dictionary
Fr.,—L. fissūra, from findĕre, fissum, to cleave.


In literature:

Such furry greenness mantling the rude peelings and healing the fissures of their shattered shells.
"The Piazza Tales" by Herman Melville
How this net-work of capillary fissures is formed has not been ascertained by direct observation.
"The Atlantic Monthly, Vol. 12, No. 74, December, 1863" by Various
The Path was in Ireland, a fissure in the cliff at Fairhead.
"Kenny" by Leona Dalrymple
A small rill of water trickled from a fissure in the rock above, and wound its way through the sand towards the sea.
"Edward Barnett; a Neglected Child of South Carolina, Who Rose to Be a Peer of Great Britain,--and the Stormy Life of His Grandfather, Captain Williams" by Tobias Aconite
The fissures of the sheath widened visibly and turned white as the two men looked at them.
"The Bread-winners" by John Hay
When silence was restored, a long black train cut into innumerable fissures met their anxious gaze.
"The Waif of the "Cynthia"" by André Laurie and Jules Verne
A little further on a concrete shelter stood intact except for deep vertical fissures.
"Combed Out" by Fritz August Voigt
Crepitation, and in some cases fissures, may be easily detected.
"Lameness of the Horse" by John Victor Lacroix
Close by this rock is one of those fissures or caverns which in the language of the country are called dungeons.
"The Prose Works of William Wordsworth" by William Wordsworth
Crags appeared, and fern-crowded fissures and roots of trees like knots of frozen serpents.
"Foes" by Mary Johnston

In poetry:

Thy mouth,--that fissure in thy face,
By something like a chin,--
May be a very useful place
To put thy victual in.
"To A Portrait Of "A Gentleman"" by Oliver Wendell Holmes
See!--through yon fissure deep and dim there
The demon's forehead glows amain,
For as with me so 'tis with him there--
In the skull's cavern seethes the brain.
"Had I At Mecca's Gate Been Nourished" by Hermann Ferdinand Freiligrath
And in church, and palace, and judgment-hall,
He marked great fissures that rent the wall,
And opened wider and yet more wide
As the living foundation heaved and sighed.
"A Parable - II" by James Russell Lowell
Grayed all with age, those lonely hills—ah me,
How worn and weary they appeared to be!
Between their feet long dusty fissures clove
The plain in aimless windings to the sea.
"The Passing Show" by Ambrose Bierce
A land there is, lying near far-northern snow,
Where only the fissures life's springtime may know.
But surging, the sea tells of great deeds done,
And loved is the land as a mother by son.
"Our Country 1859" by Bjornstjerne Bjornson
Change laughs again, again the sky is cold,
And down that fissure now no star-beam glides.
Yet they whose sweep of vision grows not old
Still at the central point of space behold
Another pole-star: for the Truth abides.
"The Old Pole Star" by Edith Wharton

In news:

A Fissure Opens Off the Coast of Maine.
Kim Jong-il's oldest son reveals ruling family fissure .
But the fact that Europe's largest powers felt compelled to present President Bush with an 11th-hour challenge deepened fissures that have opened in the last year with major allies.
Two Tribes The Democrats' God-and-Jerusalem controversy stems from large-scale fissures between the parties.
Fissuring and erosion have uncovered a stretch of this ancient seabed in an area called Makhtesh Ramon, a geological feature that's considered Israel's Grand Canyon.
Whenever an architect spots a fissure on a gable, we do not expect him to wait for the wall to collapse before he repairs the trouble.
The 17-nation euro zone is beset by fissures between strong economies such as Germany and weaker ones such as Greece, Ireland and Portugal, which risk being engulfed by historic levels of government debt.
It starts a series of fissures that still runs down the middle of the Atlantic Ocean, separating the North American and European continents .
The fissures within the Republican Party that some say cost the GOP control of the Senate have resurfaced just three weeks after the election.
Akin's dramatic loss also points to a growing fissure within the GOP between social conservatives and moderate Republicans, said Dave Robertson, a political science professor at the University of Missouri-St.
The steroid that eventually cleared up her debilitating skin disorder left painful cracks and fissures.
A man peers into a 60-foot-deep, earthquake-generated fissure west of Mammoth Lakes.
(A) Axial non-contrast-enhanced MDCT of the abdomen showing retroperitoneal haematoma (asterisk) surrounding a fissured infrarenal abdominal aneurysm (arrowheads).
Deep and possibly momentous fissures are opening within France's loosely united rightist parliamentary majority as President Francois Mitterrand, a Socialist, remains a heavy favorite in Sunday's presidential election.
A gnarly fissure will rip the skin off even the best crack climbers.

In science:

Non-Interacting Isotropic Fissure (NIIF2): in which a crack grows as a straight line with equal probability along any direction inside the square. b) Non-Interacting Anisotropic Fissure (NIAF2): where a straight line representing a crack propagates only along selected directions.
Schematic models for fragmentation of brittle solids in one and two dimensions