fissure
//ˈfɪʃ.ər//
Noun
fissureSingular
fissuresPlural
1
A long, narrow opening or crack, especially in rock or earth.
A deep fissure appeared in the rock after the earthquake.
2
A groove or cleft in a body part or organ, especially in the brain.
The lateral fissure separates the temporal lobe from the frontal and parietal lobes of the brain.
3
A state of division or disagreement between people or groups.
A deep fissure developed between the two political parties over the new policy.
Verb
1
To split or crack, forming a fissure.
The dry earth began to fissure under the intense heat.