SDIC is a lookup mode on Emacsen for an English - Japanese dictionary.
It is a simple, small, speedy and smart program.

;;; for sdic-mode
(autoload 'sdic-describe-word "sdic" nil t)
(global-set-key "\C-cw" 'sdic-describe-word)
(autoload 'sdic-describe-word-at-point "sdic" nil t)
(global-set-key "\C-cW" 'sdic-describe-word-at-point)

WWW: http://www-nagao.kuee.kyoto-u.ac.jp/member/tsuchiya/sdic/