from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A lengthy, appended exposition of a topic or point.
- n. A digression.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fuller treatment (in a separate section) of a particular part of the text of a book, especially a classic.
- n. A narrative digression, especially to discuss a particular issue.
from the GNU version of the Collaborative International Dictionary of English
- n. A dissertation or digression appended to a work, and containing a more extended exposition of some important point or topic.
from The Century Dictionary and Cyclopedia
- n. A digression; an excursion.
- n. A dissertation inserted in a work, as an edition of a classic, to elucidate some obscure or important point of the text.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a message that departs from the main subject
Latin, from past participle of excurrere, to run out; see excursion.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin excursus ‘excursion’. (Wiktionary)