'Reverse indentation' definitions:

Definition of 'Reverse indentation'

From: GCIDE

Indentation \In`den*ta"tion\, n.
1. The act of indenting or state of being indented. [1913 Webster]
2. A notch or recess, in the margin or border of anything; as, the indentations of a leaf, of the coast, etc. [1913 Webster]
3. A recess or sharp depression in any surface. [1913 Webster]
4. (Print.) (a) 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. (b) The measure of the distance; as, an indentation of one em, or of two ems. [1913 Webster]
Hanging indentation, or Reverse indentation, indentation of all the lines of a paragraph except the first, which is a full line; also called a hanging indent. [1913 Webster]