(anatomy) a long narrow slit or groove that divides an organ into lobes

Usage examples of fissure.

I had placed myself at the port-scuttle, and saw some magnificent substructures of coral, zoophytes, seaweed, and fucus, agitating their enormous claws, which stretched out from the fissures of the rock.

A man hanging at the end of the alpenstock might conceivably swing into the fissure, but h would necessitate a feat of acrobatics far beyond the powers of either himself or Gabula.

Between the thick cords were dark anfractuous clefts five times his height, tapering away to knife-thin fissures.

It was then that Doctor Syn noticed the brass bell of a blunderbuss wobbling at him through a fissure in the wall.

Northwest more than a thousand klicks along the high ridge from Gunung Agung is Kilimacharo, where the denizens of the lower terraces disinter their dead from the loamy fissures after a decent interval and carry the bones high above breathable atmosphere -- climbing in handsewn skinsuits and pressure masks -- to rebury their relatives in rock-hard ice near the eighteen-thousand-meter level, with the skulls staring through ice toward the summit in eternal hopefulness.

The ground on either side of the fissure had buckled and thrust upward so that the crevice was bordered by mounds of dirt and rubble.

Newt, appearing and disappearing rapidly in his agitation, buzzed around the fissure.

Cazin and Rey both produced abortion by forcible dilatation of the anus for fissure, but Gayet used both the fingers and a speculum in a case at five months and the woman went to term.

Or had some other stress worked apart the fissures that had spidered their way across the perfect porcelain image of the Doss family?

A great seam had opened above the long cliff, and the terrible Rattlesnake Ledge, with all its envenomed reptiles, its dark fissures and black caverns, was buried forever beneath a mighty incumbent mass of ruin.

ALIENS FROM THE FISSURES, IT SEEMS, CAPTAIN, have returned to their realm now that Equinox is gone.

Louis reports a case in which there was exstrophy of the heart through the fissure.

The cliff, as has been said, rose to a height of three hundred feet, but the mass was unbroken throughout, and even at its base, scarcely washed by the sea, it did not offer the smallest fissure which would serve as a dwelling.

She led the way now, up the fissured slope, the hammering of her heart competing with that of the handyman.

At first, much of the damage there suggested natural causes: an earthquake, perhaps, that had left downed buildings, fissured roadways, and fires casually gutting homes from which all occupants had fled.