Columbia Encyclopedia

(Encyclopedia) Kós kŏs, kôs [key], Lat. Cos, island (1991 pop. 26,379), 111 sq mi (287 sq km), SE Greece, in the Aegean Sea; 2d largest of the Dodecanese, near the Bodrum peninsula of Turkey. Although it rises to...

(Encyclopedia) Sukhumi so͝okho͞oˈmē [key], Abkhaz Sukhum, city (2011 pop. 62,914), capital of Abkhazia, a region in W Georgia that has had de facto independence since the 1990. Located on the Black Sea, it is a ...

(Encyclopedia) peroxide pərŏkˈsīd [key], chemical compound containing two oxygen atoms, each of which is bonded to the other and to a radical or some element other than oxygen; e.g., in hydrogen peroxide, H2O2, ...

(Encyclopedia) jatropha jăˈtrəfə [key], any plant of a widely distributed genus (Japtropha) of perennial herbs, shrubs, and trees in the family Euphorbiaceae (spurge family), native to tropical areas of the West...

(Encyclopedia) sudden infant death syndrome (SIDS) or crib death, sudden, unexpected, and unexplained death of an apparently healthy infant under one year of age (usually between two weeks and eight months old). SID...

(Encyclopedia) Rhea, in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn V (or S5), Rhea is 950 mi (1530 km) in diameter, orbits Saturn at a mean distance of 327,487 mi (527,...

(Encyclopedia) Mexico or Mexico City, Span. Ciudad de México (Méjico), city (1990 pop. 8,236,960; 1991 met. area est. 20,899,000), central Mexico, capital and largest city of Mexico. The city has been the met...

(Encyclopedia) mineral, dietary, any of a group of inorganic elements that are essential to humans and animals for normal body function. In nutrition, minerals are those elements for which the body's requirement is ...

(Encyclopedia) smoke, visible gaseous product of incomplete combustion. Smoke varies with its source, but it usually comprises hot gas and suspended particles of carbon and tarry substances, or soot. To reduce the a...

(Encyclopedia) metabolite, organic compound that is a starting material in, an intermediate in, or an end product of metabolism. Starting materials are substances, usually small and of simple structure, absorbed by ...