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West Siberian Plain

(Encyclopedia)West Siberian Plain, an extensive region of continuous flatland, N Asia, comprising the western third of Siberia, Russia. It is bounded on the east by the Yenisei River, on the north by the Arctic Oce...

formaldehyde

(Encyclopedia)formaldehyde fôrmălˈdəhīdˌ [key], HCHO, the simplest aldehyde. It melts at −92℃, boils at −21℃, and is soluble in water, alcohol, and ether; at STP, it is a flammable, poisonous, colorle...

vapor pressure

(Encyclopedia)vapor pressure, pressure exerted by a vapor that is in equilibrium with its liquid. A liquid standing in a sealed beaker is actually a dynamic system: some molecules of the liquid are evaporating to f...

Chärjew

(Encyclopedia)Chärjew chərjōˈ [key], city, capital of Lebap region, NW Turkmenistan, on the Amu Darya R...

Edinburg

(Encyclopedia)Edinburg ĕdˈənbûrgˌ [key], city (2020 pop. 100,243), seat of Hidalgo co., extreme S Tex.; inc. ...

Odessa, city, United States

(Encyclopedia)Odessa ōdĕsˈə [key], city (1990 pop. 89,699), seat of Ector co., W Tex.; founded 1881, inc. 1927. Great oil deposits just to the south changed Odessa from a small ranch town into a large and growi...

Morgan City

(Encyclopedia)Morgan City, city (1990 pop. 14,531), St. Mary parish, S La., a fishing port on the Atchafalaya River (connected to the Intracoastal Waterway); inc. 1860 as Brasher, renamed 1876. The city is headquar...

Okmulgee

(Encyclopedia)Okmulgee ōkˌmŭlˈgē [key], city (1990 pop. 13,441), seat of Okmulgee co., E central Okla., in an oil and farm area; inc. 1900. An agricultural processing center, it has oil and gas wells, a glass ...

oxygen tent

(Encyclopedia)oxygen tent, device used to maintain a patient in an oxygen-rich environment. The oxygen tent is composed of a clear plastic sheet suspended over the bed and tucked beneath the mattress to provide an ...

Port Lavaca

(Encyclopedia)Port Lavaca ləvăkˈə [key], city (1990 pop. 10,886), seat of Calhoun co., S Tex., on Lavaca Bay; inc. 1907. A deepwater port of entry, it is a shipping point for an agricultural (corn, rice, cattle...