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carbon black

(Encyclopedia)carbon black, mixture of partially burned hydrocarbons. Carbon black is produced by partial combustion of natural gas. It is used as a black pigment for inks and paints, and is used in large amounts b...

Leticia

(Encyclopedia)Leticia lātēˈsēä [key], town (1993 pop. 17,758), capital of Amazonas commissary, SE Colombia, on the upper Amazon. The Leticia region, a narrow strip of land extending S of the Putumayo River to ...

magnesia, chemical compound

(Encyclopedia)magnesia, common name for the chemical compound magnesium oxide, MgO. It occurs as colorless, cubic crystals. It is refractory, melting at about 2,800℃. It is very slightly soluble in pure water but...

Kitchener

(Encyclopedia)Kitchener, city (1991 pop. 168,282), Regional Municipality of Waterloo, S Ont., Canada, in the Grand River valley. Settled largely by Mennonites from Pennsylvania in 1806, it was known as Berlin until...

Muskogee

(Encyclopedia)Muskogee mŭskōˈgē [key], city (1990 pop. 37,708), seat of Muskogee co., E Okla., near the junction of the Arkansas, Verdigris, and Grand rivers; inc. 1898. It is an important transportation, trade...

Giessen

(Encyclopedia)Giessen gēˈsən [key], city, Hesse, central Germany, on the Lahn River. It is an industrial...

Gilbert

(Encyclopedia)Gilbert, city (2020 pop. 267,918), Maricopa co. S central Ariz., suburb of Phoenix, located S of Mesa and E of Chandler; inc. 1920. Founded at the site ...

Passaic, city, United States

(Encyclopedia)Passaic pəsāˈĭk [key], city (1990 pop. 58,041), Passaic co., NE N.J., a port on the Passaic River; settled 1678 by Dutch traders as Acquackanonk, named Passaic 1854, inc. as a city 1873. Formerly ...

Talladega

(Encyclopedia)Talladega tălədēˈgə [key], city (1990 pop. 18,175), seat of Talladega co., NE central Ala., in the Blue Ridge foothills; inc. 1835. There are significant marble and limestone quarries. Textiles, ...

splint

(Encyclopedia)splint, rigid or semiflexible device for the immobilization of displaced or fractured parts of the body. Most commonly employed for fractures of bones, a splint may be a first-aid measure that allows ...