Slovak-English,English-Slovak dictionary,written in Perl.There is installator for Windows and deb package for Debian/Ubuntu.Requeries GTK 2 to be present on the system. On Linux you need beside symphaty also libclipboard, this is included in zip
Wiktionary App. Java Dictionary Application that uses Wikipedia. It's a fast, lightweight desktop dictionary written in java. Requires java and internet connectivity. Executable included for Windows users. Find more at http://skiyesounds.com/qwiki/