22-letter words containing p, l, e, a, t
- united empire loyalist — any of the American colonists who settled in Canada during or after the War of American Independence because of loyalty to the British Crown
- universal postal union — an international organization, formed in Bern, Switzerland (1875), that administers and regulates international postal service. Abbreviation: UPU.
- universal product code — a bar code that indicates price, product classification, etc., and can be read electronically, as at checkout counters in supermarkets. Abbreviation: UPC.
- unprofessional conduct — activity that is contrary to the accepted code of conduct of a profession
- upright vacuum cleaner — a vacuum cleaner that is tall rather than wide
- urban development zone — an area that is designated as being a site for urban development
- user datagram protocol — (protocol) (UDP) Internet standard network layer, transport layer and session layer protocols which provide simple but unreliable datagram services. UDP is defined in STD 6, RFC 768. It adds a checksum and additional process-to-process addressing information [to what?]. UDP is a connectionless protocol which, like TCP, is layered on top of IP. UDP neither guarantees delivery nor does it require a connection. As a result it is lightweight and efficient, but all error processing and retransmission must be taken care of by the application program.
- valencia simple tasker — (operating system) (VSTa) A small microkernel based Unix-like operating system, taking ideas from QNX and Plan 9, available under GPL.
- verification principle — (in the philosophy of the logical positivists) the doctrine that nontautologous statements are meaningful only if it is in principle possible to establish empirically whether they are true or false
- video display terminal — Computers. a computer terminal consisting of a screen on which data or graphics can be displayed. Abbreviation: VDT.
- white australia policy — an unofficial term for an immigration policy designed to restrict the entry of non-White people into Australia
- woman police constable — a policewoman of the lowest rank
- yosemite national park — a national park in E California. 1182 sq. mi. (3060 sq. km).
- zero population growth — the maintenance of a population at a constant level by limiting the number of live births to that needed to replace the existing population.