Source : Webster's Revised Unabridged Dictionary (1913)

Lyric \Lyr"ic\, Lyrical \Lyr"ic*al\, a. [L. lyricus, Gr. ?: cf.
   F. lyrique. See {Lyre}.]
   1. Of or pertaining to a lyre or harp.

   2. Fitted to be sung to the lyre; hence, also, appropriate
      for song; -- said especially of poetry which expresses the
      individual emotions of the poet. ``Sweet lyric song.''
      --Milton.

Source : WordNet®

lyrical
     adj 1: suitable for or suggestive of singing
     2: expressing deep personal emotion; "the dancer's lyrical
        performance" [syn: {lyric}]