integrating wiktionary

Hi Guys,

I'd like to integrate and cache wiktionary in an application I'm developing
but I'm having this problem: How can I retrieve content from wiktionary in
a structured format or translate it to a structured format (with structured
format like XML, CSV, Json,...)? I have already looked into the
Special:Export page but that didn't really helped me cause the actual
content is still all in one field. Are there any known best-practices to do
this?

Thanks!
Cedric