ˌinˌden.ˈtāshən noun
( -s )
Etymology: indent (I) + -ation
1.
a. : an angular cut (as a notch) or something resembling such a cut in an edge
indentations along the edge of a leaf
b. : a usually deep recess (as in a coastline)
many bays pockmark the coast with indentations
2. : the action of indenting or condition of being indented
3.
[ indent (III) + -ation ]
: a usually small surface depression (as a dent or hollow) made by or as if by striking or pressing
noticed that the metal was covered with indentations
4. : indention 2