15-letter words containing p, o, l, y, g, n
- unprogressively — in an unprogressive manner
- uropygial gland — a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers.
- 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.