The Collaborative International Dictionary of English v.0.48:

Symbolic \Sym*bol"ic\, Symbolical \Sym*bol"ic*al\, a. [L.
   symbolicus, Gr. symboliko`s: cf. F. symbolique.]
   Of or pertaining to a symbol or symbols; of the nature of a
   symbol; exhibiting or expressing by resemblance or signs;
   representative; as, the figure of an eye is symbolic of sight
   and knowledge. -- Sym*bol"ic*al*ly, adv. --
   Sym*bol"ic*al*ness, n.
   [1913 Webster]

         The sacrament is a representation of Christ's death by
         such symbolical actions as he himself appointed. --Jer.
                                                  Taylor.
   [1913 Webster]

   Symbolical delivery (Law), the delivery of property sold by
      delivering something else as a symbol, token, or
      representative of it. --Bouvier. Chitty.

   Symbolical philosophy, the philosophy expressed by
      hieroglyphics.
      [1913 Webster]

WordNet (r) 3.0 (2006):

symbolically
    adv 1: in a symbolic manner; "symbolically accepted goals"
    2: by means of symbols; "symbolically expressed"