The Collaborative International Dictionary of English v.0.48:

flashlight \flash"light`\ n.
   a portable battery-powered electric lamp, small enough to be
   held in one hand; -- it is most commonly cylindrical, but
   other forms are also made. It is called in Britain a torch

   Syn: torch.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

flashlight
    n 1: a small portable battery-powered electric lamp [syn:
         flashlight, torch]