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1. A concave cut into a surface or edge (as in a coastline)
   - indenture
    
2. The formation of small pits in a surface as a consequence of corrosion
   - pitting, roughness
    
3. The space left between the margin and the start of an indented line
   - indention, indent, indenture
    
4. The act of cutting into an edge with toothlike notches or angular incisions

Derived forms: indentations

Type of: blank space, change of shape, concave shape, concavity, corroding, corrosion, erosion, incurvation, incurvature, place, space

Encyclopedia: Indentation