The Collaborative International Dictionary of English v.0.48:

disentangle \dis`en*tan"gle\, v. t. [imp. & p. p.
   Disentangled; p. pr. & vb. n. Disentangling.]
   1. To free from entanglement; to release from a condition of
      being intricately and confusedly involved or interlaced;
      to reduce to orderly arrangement; to straighten out; as,
      to disentangle a skein of yarn.
      [1913 Webster]

   2. To extricate from complication and perplexity; disengage
      from embarrassing connection or intermixture; to
      disembroil; to set free; to separate.
      [1913 Webster]

            To disentangle truth from error.      --Stewart.
      [1913 Webster]

            To extricate and disentangle themselves out of this
            labyrinth.                            --Clarendon.
      [1913 Webster]

            A mind free and disentangled from all corporeal
            mixtures.                             --Bp.
                                                  Stillingfleet.

   Syn: To loose; extricate; disembarrass; disembroil; clear;
        evolve; disengage; separate; detach.
        [1913 Webster]

WordNet (r) 3.0 (2006):

disentangle
    v 1: release from entanglement of difficulty; "I cannot
         extricate myself from this task" [syn: extricate,
         untangle, disentangle, disencumber]
    2: extricate from entanglement; "Can you disentangle the cord?"
       [syn: disentangle, unsnarl, straighten out] [ant:
       entangle, mat, snarl, tangle]
    3: free from involvement or entanglement; "How can I disentangle
       myself from her personal affairs?" [syn: disinvolve,
       disembroil, disentangle]
    4: separate the tangles of [syn: unwind, disentangle]
    5: smoothen and neaten with or as with a comb; "comb your hair
       before dinner"; "comb the wool" [syn: comb, comb out,
       disentangle]