15-letter words containing a, d, e, m
- unrecommendable — not able to be recommended, supported, or endorsed
- untransmigrated — not transmigrated; not transferred or caused to be transferred
- upwardly mobile — See under vertical mobility (def 1).
- uralian emerald — demantoid: not a true emerald.
- uranium dioxide — a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- van diemen gulf — an inlet of the Timor Sea in N Australia, in the Northern Territory
- vending machine — a coin-operated machine for selling small articles, beverages, etc.
- 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
- waddesdon manor — a mansion near Aylesbury in Buckinghamshire: built (1880–89) in the French style for the Rothschild family: noted for its furnishings and collections of porcelain and paintings
- warmheartedness — The quality of being warmhearted.
- water-based mud — Water-based mud is a type of drilling mud consisting mainly of water, which has additives to modify it and make it more effective.
- waterfall model — (programming) A software life-cycle or product life-cycle model, described by W. W. Royce in 1970, in which development is supposed to proceed linearly through the phases of requirements analysis, design, implementation, testing (validation), integration and maintenance. The Waterfall Model is considered old-fashioned or simplistic by proponents of object-oriented design which often uses the spiral model instead. Earlier phases are sometimes called "upstream" and later ones "downstream". Compare: iterative model.
- well-accustomed — customary; usual; habitual: in their accustomed manner.
- well-formulated — to express in precise form; state definitely or systematically: He finds it extremely difficult to formulate his new theory.
- well-maintained — to keep in existence or continuance; preserve; retain: to maintain good relations with neighboring countries.
- wheatgerm bread — bread made with wheat germ
- wreathed column — a column having a twisted or spiral form.
- 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.