The designation BM refers to "Branch Mint," meaning any US Mint other than Philadelphia You will usually find this designation used to describe Branch Mint Proof coins, such as the 1883-CC Proof Morgan dollar, 1893-CC BM Proof Morgan dollar, etc
Blood glucose Literally it stands for Boehringer Mannheim, a German pharmaceutical company (now called Roche) BM-Test is a blood glucose testing strip they make
Business model; in a broad sense, this is a GRADE business model, which includes such elements as ORG and BP diagrams; in the narrower sense, this refers to the BM diagram type, in which class diagram symbols are used to create a conceptual overview of a business model