Torrent file
From Pulsed Media Wiki
Torrent File
A torrent file (with the .torrent extension) is a small computer file that contains metadata about files and folders to be distributed, and a list of the network locations of trackers, which are computers that coordinate the BitTorrent network. It does not contain the content itself, but rather information necessary for a BitTorrent client to download or upload the actual data from other users (peers) on the network.