By default, TikiWiki uses the WikiWords feature. This is a quick and easy way to create links (and create) other wiki pages. To have a word in CaMeL CaSe not create a wiki link (even if the WikiWords feature is on), simply surround the word with two inverse parenthesis. For example: ))NotALink(( Even though the text NotALink is in CaMel CaSe, it is not a link.
Found on doc.tikiwiki.org