The Collaborative International Dictionary of English v.0.48:

freetailed bat \freetailed bat\ n.
   A small swift bat with leathery ears and a long tail; common
   in warm regions.

   Syn: freetail.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

free-tailed bat
    n 1: small swift insectivorous bat with leathery ears and a long
         tail; common in warm regions [syn: freetail, free-tailed
         bat, freetailed bat]