26-letter words containing o, p, i, n, a
- transport driver interface — (networking) (TDI) Developed by SUN, IBM, and Microsoft (and others?), the TDI is a software interface between the protocols and application programing interface layers of the Windows NT network model.
- traveling salesman problem — any mathematical problem that involves determination of the shortest path through several points.
- triple combination therapy — treatment with three different drugs
- udmurt autonomous republic — an autonomous republic in the Russian Federation in Europe. 16,250 sq. mi. (42,088 sq. km). Capital: Izhevsk.
- united press international — a business organization of newspapers in the U.S., together with representatives abroad, for the reporting and interchange of news. Abbreviation: UPI, U.P.I.
- united states marine corps — Marine Corps. Abbreviation: USMC.
- university of pennsylvania — (body, education) The home of ENIAC and Machiavelli. Address: Philadelphia, PA, USA.
- upper side-band modulation — (communications) (USB) A kind of modulation applied to a sinusoidal carrier.