fissure

US /ˈfɪʃ.ɚ/
UK /ˈfɪʃ.ɚ/
"fissure" picture
1.

a long, narrow opening or line of breakage made by cracking or splitting, especially in rock or earth.

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A deep fissure opened in the earth after the earthquake.
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There was a small fissure in the rock face.
:
crackcrevicesplitriftchasm
2.

a state of disunion; a schism.

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The disagreement caused a deep fissure within the political party.
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The debate revealed a growing fissure between the two factions.
:
schismdivisionriftsplitbreach
1.

to split or crack (something) to form a long, narrow opening.

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The intense heat caused the rock to fissure.
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The old wooden beam began to fissure under the weight.
:
cracksplitfracturecleaverupture