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