BCU

Borough Command Unit
Found on http://www.met.police.uk/foi/glossary.htm

BCU

Basic Command Unit
Found on http://www.cjp.org.uk/glossary/

BCU

(initial) Ballistic Control Unit. Ballistic Control System and variations.
Found on http://wiki.eveonline.com/en/wiki/Glossary

BCU

Biomedical Communications Unit
Found on http://www.vetmed.wsu.edu/glossary/glossary.asp
No exact match found