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n. A long narrow opening; a crack or cleft.

n. The process of splitting or separating; division.

n. A separation into subgroups or factions; a schism.

n. Anatomy A normal groove or furrow, as in the liver or brain, that divides an organ into lobes or parts.

n. Medicine A break in the skin, usually where it joins a mucous membrane, producing a cracklike sore or ulcer.

v. To form a crack or cleft or cause a crack or cleft in.

n. a crack or opening, as in a rock

v. To split forming fissures.

n. A narrow opening, made by the parting of any substance; a cleft.

v. To cleave; to divide; to crack or fracture.

n. 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. 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. In entomology: A deep, sharp longitudinal depression of a surface.

n. A very deep angular notch in a margin, almost dividing the part or organ.

n. 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. 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. In pathology, a crack-like sore or ulcer: as, an anal fissure.

n. See the adjectives.

To cleave; split; divide; crack or fracture.

To crack; cleave; split open.

n. A longitudinal depression on the under surface of the liver.

n. a long narrow opening

n. a long narrow depression in a surface

v. break into fissures or fine cracks

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

"The term fissure is applied to such grooves as involve the entire thickness of the cerebral wall, and thus produce corresponding eminences in the ventricular cavity, while the sulci affect only the superficial part of the wall, and therefore leave no impressions in the ventricle."

fissured    fissures    fissuring   

imprint    impression    depression    crack   

ilioischiadic fissure    suprasylvian fissure    adoccipital fissure    exoccipital fissure    fissures of the brain    pregracile fissure    palpebral fissure    longitudinal fissure    pterygomaxillary fissure    anterotemporal fissure   

cleft    cleave    divide    crack    split   

Fischer    Fisher    disher    fisher    swisher    wisher   

crevice    cleft    ravine    chasm    rift    cranny    cleave    crevasse    opening    crack