1) Big round butts 2) Divinity degrees 3) Kipling favorite 
Base Transceiver Station*
British Toxicology Society
British Transplantation Society
British Trauma Society
Base Transceiver Station; contains the equipment for transmitting and receiving of radio signals (transceivers), antennas, and equipment for encrypting and decrypting communications with the Base Station Controller (BSC).
Base Transceiver Station + Bit Test and Set
Base Transceiver System - a mobile radio base station in GSM terminology. Provides radio coverage in a specific area and therefore effectively defines the cell of the GSM cellular system. The corresponding UMTS component is a Node B.
Blue Tongue Skink
be there soon
Behind the Scenes 
Series of designations for armoured recovery vehicles {SU;RU]