The Collaborative International Dictionary of English v.0.48:

Extrication \Ex`tri*ca"tion\, n.
   1. The act or process of extricating or disentangling; a
      freeing from perplexities; disentanglement.
      [1913 Webster]

   2. The act of sending out or evolving.
      [1913 Webster]

WordNet (r) 3.0 (2006):

extrication
    n 1: the act of releasing from a snarled or tangled condition
         [syn: unsnarling, untangling, disentanglement,
         extrication]

Moby Thesaurus II by Grady Ward, 1.0:

78 Moby Thesaurus words for "extrication":
   avulsion, break, breaking out, breakout, clearing, cutting out,
   deliverance, delivery, deracination, disburdening,
   disembarrassment, disembroilment, disencumbrance, disengagement,
   disentanglement, disinvolvement, dislodgment, drawing, drawing out,
   dredging, drilling, emergence, enucleation, eradication, escape,
   escapism, evasion, evolvement, evulsion, excavation, excision,
   expression, exsection, extirpation, extraction, flight, freeing,
   getaway, issuance, issue, jailbreak, leak, leakage, liberation,
   lifesaving, mining, outlet, pressing out, prisonbreak, pulling,
   quarrying, ransom, recovery, redemption, release, releasing,
   removal, rescue, retrieval, riddance, ripping out, salvage,
   salvation, saving, setting-free, squeezing out, uncluttering,
   unhampering, unknotting, unraveling, unrooting, unscrambling,
   unsnarling, untangling, uprooting, vent, withdrawal,
   wresting out