22-letter words containing d, i, p, n
- unconditioned response — a reflex action innately elicited by a stimulus without the intervention of any learning process
- 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 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
- unsaturated production — Unsaturated production is the production of smaller, unsaturated hydrocarbons from saturated hydrocarbons, for example producing alkenes such as ethane and propene.
- video display terminal — Computers. a computer terminal consisting of a screen on which data or graphics can be displayed. Abbreviation: VDT.
- windows for workgroups — (operating system) (WFW, WFWG) A version of Windows 3.1 which works with a network. Although stand-alone 3.1 can be networked, the installation and configuration is much improved with Windows for Workgroups (3.1). Windows for Workgroups 3.11 was a significant upgrade to WFW 3.1, adding 32-bit file access, fax capability and higher performance.