15-letter words containing p, o, l, r
- visible imports — products that a company or country buys from other countries
- voronoi polygon — (mathematics, graphics) For a member s of a set S of points in a Euclidean space, the locus of points in the plane that are closer to s than to any other member of S.
- water pollution — the pollution of the sea and rivers
- well-brought-up — If you say that someone, especially a child, is well-brought-up, you mean that they are very polite because they have been taught good manners.
- west hartlepool — a former borough, now part of Hartlepool, in Cleveland County, in NE England, at the mouth of the Tees.
- white corpuscle — white blood cell.
- wilson's petrel — a small petrel, Oceanites oceanicus, that breeds in the Southern Hemisphere but ranges into the North Atlantic and Pacific oceans.
- windfall profit — a profit that arises thanks to an external event over which the person profiting had no control
- work oneself up — become overwrought
- working capital — the amount of capital needed to carry on a business.
- xenotransplants — Plural form of xenotransplant.
- xerographically — In a xerographic way; by xerography.
- xylotypographic — involving or pertaining to xylotypography
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.
- z-zero particle — one of three particles, called intermediate vector bosons, that are believed to transmit the weak force. Symbol: Z 0.
- zoogeographical — Pertaining to zoogeography.