'Indention' definitions:

Definition of 'indention'

From: WordNet
noun
The space left between the margin and the start of an indented line [syn: indentation, indention, indent, indenture]

Definition of 'Indention'

From: GCIDE
  • Indention \In*den"tion\, n. (Print.) Same as Indentation, 4. [1913 Webster]