[in-den-tey-shuh n]
See more synonyms for indentation on
  1. a cut, notch, or deep recess: various bays and indentations.
  2. a series of incisions or notches: the indentation of a maple leaf.
  3. a notching or being notched.
  4. indention(defs 1, 2).

Origin of indentation

First recorded in 1715–25; indent1 + -ation Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for indentation

Contemporary Examples of indentation

Historical Examples of indentation

British Dictionary definitions for indentation


  1. a hollowed, notched, or cut place, as on an edge or on a coastline
  2. a series of hollows, notches, or cuts
  3. the act of indenting or the condition of being indented
  4. Also called: indention, indent the leaving of space or the amount of space left between a margin and the start of an indented line
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for indentation

1728, of margins or edges, extended form of indent (n.). Meaning "action of making a dent or impression" is from 1847.

Online Etymology Dictionary, © 2010 Douglas Harper

indentation in Medicine


  1. A notch, a pit, or a depression.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

indentation in Culture


A space left between the left-hand margin of a line of type or handwriting and the beginning of a sentence or quotation. The beginning of a paragraph is usually indented.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.