15-letter words containing d, i, a, m, o
- upward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
- upwardly mobile — See under vertical mobility (def 1).
- uranium dioxide — a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- usman dan fodio — 1754–1817, African mystic and revolutionary leader, who created a Muslim state in Nigeria
- video on demand — (communications) (VoD) A planned system using video compression to supply programs to viewers when requested, via ISDN or cable.
- villeda morales — Ramón [rah-mawn] /rɑˈmɔn/ (Show IPA), 1909?–71, Honduran diplomat and statesman: president 1957–63.
- volta river dam — a hydroelectric dam on the Volta river
- voronoi diagram — (mathematics, graphics) (Or "Voronoi tessellation", "Voronoi decomposition", "Dirichlet tessellation", After Georgy Feodosevich Voronoy) For a set S of points in a Euclidean space, the partition Vor(S) of the plane into the voronoi polygons associated with the members of S, where each polygon is defined by the set of points nearer to some given point in S than to any other point in S. The Voronoi diagram is the dual of the Delaunay triangulation of S.
- yellow mandarin — (in the Chinese Empire) a member of any of the nine ranks of public officials, each distinguished by a particular kind of button worn on the cap.