DBnary Extractor
Résumé
DBnary is an attempt to extract as many lexical data as possible from as many Wiktionary Language Editions as possible, in a structured (RDF) way, using standard lexicon ontology vocabulary (ontolex).
The extracted data is kept in sync with Wiktionary each time a new dump is generated and is available from http://kaiko.getalp.org/about-dbnary (more info is contained there).
The current repository contains the extraction programs, currently handling 25 language editions.