Noun
(Internet) A lightweight markup language used to format and structure pages in wikis.
(Internet) Content that has been marked up with such a language.
Source: en.wiktionary.orgHence, many of these sites offer some means to edit the wikitext directly. Source: Internet
However, WYSIWYG controls do not always provide all of the features available in wikitext, and some users prefer not to use a WYSIWYG editor. Source: Internet
Wikis can make WYSIWYG editing available to users, usually by means of JavaScript control that translates graphically entered formatting instructions into the corresponding HTML tags or wikitext. Source: Internet