Definitions of fissure

1. To crack; split.

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

3. To break or crack.

4. To cleave; separate in cracks.

5. To cleave; to crack or fracture.

6. To open as a fissure.

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

8. A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock.

9. A narrow opening or chasm.

10. A cleft; slit; narrow opening.

11. A cleft; a narrow chasm or opening; a deep narrow sulcus or depression, dividing the anterior and middle lobes of the cerebrum on each side.

12. A crack or cleft; a slit from the parting asunder of any substance.

13. A cleft, deep groove, or furrow dividing an organ into lobes, or sub- dividing and separating certain areas of the lobes.