Despite the Romans' common use of lead pipes, their aqueducts rarely poisoned people. Unlike other parts of the world where lead pipes cause poisoning, the Roman water had so much calcium in it, that a layer of plaque prevented the water contacting the lead itself.
OMB definition, Office of Management and Budget: the division of the Executive Office of the President that prepares and administers the federal budget and improves management in the executive branch. See more.
From Wikipedia, the free encyclopedia. Osteomyelitis (or OM) is infection and inflammation of the bone or bone marrow. It can be usefully subclassified on the basis of the causative organism (pyogenic bacteria or mycobacteria) and the route, duration and anatomic location of the infection.