Wordnet 3.0
ADJECTIVE (1)
1. 
 possessing or believed to possess magic power especially protective power; 
- Example: "a talismanic amulet"
The Collaborative International Dictionary of English v.0.48:
Talismanic \Tal`is*man"ic\, Talismanical \Tal`is*man"ic*al\, a.
   [Cf. F. talismanique.]
   Of or pertaining to a talisman; having the properties of a
   talisman, or preservative against evils by occult influence;
   magical.
   [1913 Webster]
WordNet (r) 3.0 (2006):
talismanic
    adj 1: possessing or believed to possess magic power especially
           protective power; "a talismanic amulet"