23-letter words containing a, d, u, p
- sodium tripolyphosphate — a white powder, Na 5 P 3 O 1 0 , used as a water softener, sequestering agent, and food additive.
- st. pierre and miquelon — two small groups of islands off the S coast of Newfoundland: an overseas territory of France; important base for fishing. 3 sq. mi. (240 sq. km). Capital: St. Pierre.
- stand up and be counted — express opinion
- sustainable development — supporting economy via renewable resources
- the chamber of deputies — the lower legislative assembly in some parliaments
- turn-and-slip indicator — bank-and-turn indicator.
- unincorporated business — a privately owned business, often owned by one person who has unlimited liability as the business is not legally registered as a company
- visual display terminal — video display terminal. Abbreviation: VDT.
- volumetric displacement — the volume of air per revolution that passes through a mechanical pump when the pressure at the intake and the exhaust is the same as that of the atmosphere