INDENTATION

noun a recess or sharp depression in any surface.

2. indentation ·noun the act of indenting or state of being indented.

3. indentation ·noun the measure of the distance; as, an indentation of one em, or of two ems.

4. indentation ·noun a notch or recess, in the margin or border of anything; as, the indentations of a leaf, of the coast, ·etc.

5. indentation ·noun the act of beginning a line or series of lines at a little distance within the flush line of the column or page, as in the common way of beginning the first line of a paragraph.