Definition of BitTorrent in English:
 BitTorrent
nounˈbɪ(t)ˌtɒrəntˈbitˌtôrənt
Computing trademark A peer-to-peer file transfer protocol for sharing large amounts of data over the Internet, in which each part of a file downloaded by a user is transferred to other users.
 Example sentencesExamples
-  You can probably grab the aforementioned episodes off bittorrent, or in their show notes.
 -  On the upside, my music collection has expanded a fair bit, thanks to a brilliant program called BitTorrent.
 -  Not surprisingly, the first edition of the build to hit BitTorrent was a 64-bit Chinese edition.
 -  In addition, the great demon of bandwidth usage bittorrent actually makes the network more efficient.
 -  The greater concern is about music downloaded over Limewire or BitTorrent.
 
Origin
  
Early 21st century: blend of bit4 and torrent.