A long narrow crack in an object e.g. rock.
Elongated fracture or cracks on the slope of a volcano. Fissure eruption typically produce liquid flows,but pyroclastic may also be ejected.
deep grooves, frequently occur between the toes as a result of dryness and cracking of the skin
cleft-like grooves in the chewing surfaces of back teeth
Elongated fractures or cracks on the slopes of a volcano. Fissure eruptions typically produce liquid flows, but pyroclastics may also be ejected.
Cleft-like grooves in the chewing surface of the back teeth.
Open cracks such as those that form in the oceanic crust due to plate separation.
Vertical cracks in the crust caused by tensional forces.
narrow grooves dividing organ into parts; deep cracks
long, narrow, deep cleft or crack
Elongated cracks, or fractures along the slopes of a volcano.
Cracks or fractures in the bark of a tree.