19-letter words containing p, o, l, n
- wage-push inflation — an inflationary trend caused by wage increases that in turn cause rises in production costs and prices.
- waste disposal unit — an electrically operated fitment in the plughole of a kitchen sink that breaks up food refuse so that it goes down the waste pipe
- weeping golden bell — a Chinese shrub, Forsythia suspensa, of the olive family, having long, arching, pendulous, hollow branches that root at the tip in age, and golden-yellow flowers.
- welsh mountain pony — a small sturdy but graceful breed of pony used mostly for riding, originally from Wales
- western yellow pine — ponderosa pine.
- xenotransplantation — xenograft.
- zenithal projection — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it, either at one of the poles (polar zenithal), at the equator (equatorial zenithal), or between (oblique zenithal)