1. (

• indentation ,
• indenture

) a concave cut into a surface or edge (as in a coastline) ;

2. (

• pitting ,
• roughness ,
• indentation

) the formation of small pits in a surface as a consequence of corrosion ;

3. (

• indentation ,
• indention ,
• indent ,
• indenture ,

) the space left between the margin and the start of an indented line ;

4. (

• indentation

) the act of cutting into an edge with toothlike notches or angular incisions ;