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.
adj. 1  1. Not flexible or pliant; stiff: a rigid material. 2  2. Not moving or flexing: rigid muscles. 3  3. Not changing or adjusting to different conditions or problems: a rigid thinker; a rigid hierarchy. 4  4. Scrupulously or severely maintained or performed; rigorous or harsh: rigid discipline.