U.S. Treasury securities. Definition: Interest-bearing obligations if the U.S. government issued by the U.S. Department of the Treasury as a means of borrowing money to meet government expenditures not covered by tax revenues. There are three types of marketable Treasury securities-bills, notes and bonds.
Webster Dictionary(0.00 / 0 votes)Rate this definition: Rigorous(adj) manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.
Rigorous in terms of hours in the hospital, scut work, reading, chasing after lab reports, performing procedures, absorbing facts, learning protocols and, of course, inter-acting with a variety of personalities, egos, fiefdoms and hierarchies.