Source : Webster's Revised Unabridged Dictionary (1913)

Eden \E"den\, n. [Heb. [=e]den delight, pleasure; also, a place
   of pleasure, Eden.]
   The garden where Adam and Eve first dwelt; hence, a
   delightful region or residence.

Source : WordNet®

eden
     n 1: any place of complete bliss and delight and peace [syn: {paradise},
           {nirvana}, {heaven}, {promised land}, {Shangri-la}]
     2: a beautiful garden where Adam and Eve were placed at the
        Creation; when they disobeyed and ate the forbidden fruit
        from the tree of knowledge of good and evil they were
        driven from their paradise (the fall of man) [syn: {Garden
        of Eden}]

Source : Free On-Line Dictionary of Computing

Eden
     
        A concurrent, {object-oriented}, distributed {operating
        system} and language, based on {remote procedure call}.  It
        has both {synchronous} and {asynchronous} {message passing}.
     
        ["The Eden System: A Technical Review", G. Almes et al, IEEE
        Trans Soft Eng SE-11(1):43-59 (Jan 1985)].