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.
Office of Management and Budget, OMB-the executive agency that advises the President on the federal budget. United States Trade Representative, US Trade Representative-the executive agency that administers the President's policies on international trade.ational Security Council, NSC-a committee in the executive branch of government that advises the president on foreign and military and national security; supervises the Central Intelligence Agency. Council on Environmental Policy-the executive agency that advises the President on protecting the environment.