A long, narrow crack or opening made by breaking or splitting, especially in rock or earth.
After Miller's Dale Junction, the main Derby-Manchester line crosses the Wye for the last time and turns north-west up Great Rocks Dale, a natural fissure several miles long.
A groove, deep furrow, elongated cleft or tear between body parts or in the substance of an organ.
A break or slit in tissue usually at the junction of skin and mucous membrane.
From Middle English fissure, from Old French fissure, from Latin fissūra (“a cleft, chink”), from findō (“to cleave, split, divide”) + -tūra (nominal suffix).
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