What is StarDict?
StarDict is a Cross-Platform and international dictionary Software. It has powerful features such as "Glob-style pattern matching", "Scan selection word," "Fuzzy query," etc. Stardict Version3.0 has developed a lot of new functions, such as Full-text translation, Net Dict.
Free dictionaries to download
Full-text translation by Google or Yahoo
Capture text by mouse
The project seems to be no longer updated. Last version, 3.0.6, released in January 2015, but it can be still downloaded from SourceForge.