What does OM stand for?

Obersteirische Molkerei

Osteomyelitis

Osteomyelitis (OM) is infection and inflammation of the bone. It can be usefully subclassified on the basis of the causative organism and the route, duration and anatomic location of the infection. Osteomyelitis usually begins as an acute infection, but it may evolve into a chronic condition.

Options Market

Operational Maintenance

Order of Merit

Operations and Maintenance

Oil Mineral

Orange Moss

Obnoxious Moron

Old Man

Colloquial name for the commander of a merchant vessel. A piece of heavy bar iron bent to the form of a Z. One leg of the Z is bolted to the material that is to be drilled, and the drill top placed under the other leg and adjusted so the old man holds the drill against the material.