bcm

Billion cubic metres (1 cubic metre = 35.31 cubic feet).
Found on http://www.oilandgasuk.co.uk/glossary.cfm

BCM

BCM: Body cell mass.
Found on http://www.medterms.com/script/main/art.asp?articlekey=33231

BCM

Body Control Module
Found on http://www3.sympatico.ca/dhaughey/j1930.htm

bcm

abbreviation for 'bank cubic meter' (see above).
Found on http://www.unc.edu/~rowlett/units/dictB.html
No exact match found