16-letter words containing e, n, l, o
- wilson's warbler — a North American warbler, Wilsonia pusilla, having yellow plumage and a black patch on top of the head.
- windowless monad — (in the philosophy of Leibniz) a monad having no direct causal or perceptual relation with any other monad.
- windowpane shell — capiz.
- wireline logging — Wireline logging is the process of using electric instruments to continuously measure the properties of a formation, in order to make decisions about drilling and production operations.
- wolfenden report — a study produced in 1957 by the Committee on Homosexual Offences and Prostitution in Britain, which recommended that homosexual relations between consenting adults be legalized
- woman of letters — a woman engaged in literary pursuits, especially a professional writer.
- woodland culture — a long pre-Columbian tradition characterized by the corded pottery of a hunting and later agricultural people of the eastern U.S. noted for the construction of burial mounds and other structures and dating from c1000 b.c. to a.d. 1700.
- world exposition — world's fair.
- worth one's salt — a crystalline compound, sodium chloride, NaCl, occurring as a mineral, a constituent of seawater, etc., and used for seasoning food, as a preservative, etc.
- writ of election — a writ by an executive authority requiring the holding of an election, especially one issued by a governor to require a special election for filling a vacancy in the representation from a state.
- xenotransplanted — Transplanted by xenotransplantation.
- yablonovyy range — a mountain range in the SE Russian Federation in Asia, E of Lake Baikal.
- yellow archangel — a Eurasian herbaceous plant (Lamiastrum luteum) that has yellow helmet-shaped flowers: family Lamiaceae (labiates)
- yellow pimpernel — Lysimachia nemorum
- yellow poinciana — royal poinciana.
- yellow underwing — any of several species of noctuid moths (Noctua and Anarta species), the hind wings of which are yellow with a black bar
- yellowfin (tuna) — a tuna (Thunnus albacares) with yellow fins and a yellow stripe on each side, important as a game and food fish and found worldwide in warm seas
- yellowstone lake — a lake in NW Wyoming, in Yellowstone National Park. 20 miles (32 km) long; 140 sq. mi. (363 sq. km).
- zenith telescope — a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.
- zollner illusion — a spatial illusion in which parallel lines intersected by short oblique lines are perceived as converging or diverging.
- zone of leaching — A horizon.