treasury bill
Treasury bill. A short-term debt security issued by the federal government, with a maturity of 13, 26, or 52 weeks. • These bills — auctioned weekly or quarterly — pay interest in the form of the difference between their discounted purchase price and their par value at maturity. — Abbr. T-bill. [Cases: United States 89. C.J.S. United States §§ 165–166.]