My Japanese professor wanted a web app that could quickly find japanese-to-japanese definitions using Yahoo's daijisen dictionary.
gem install daijisen
Pass some furigana to a new daijisen query object
query = Daijisen::Query.new("漢字")
You will now have access to a list of readings, examples, and links to specific definitions
query.defs.link query.defs.reading query.defs.example