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sponge
(Encyclopedia)sponge, common name for members of the aquatic animal phylum Porifera, and for the dried, processed skeletons of certain species used to hold water. Over 4,500 living species are known; they are found...smuggling
(Encyclopedia)smuggling, illegal transport across state or national boundaries of goods or persons liable to customs or to prohibition. Smuggling has been carried on in nearly all nations and has occasionally been ...Scandinavia
(Encyclopedia)Scandinavia skănˌdĭnāˈvēə [key], region of N Europe. It consists of the kingdoms of Sweden, Norway, and Denmark; Finland and Iceland are usually considered part of Scandinavia. Physiographicall...Khakass Republic
(Encyclopedia)Khakass Republic khəkäsˈēə [key], constituent republic (1990 est. pop. 573,000) 23,900 sq mi (61,900 sq km), S central Siberian Russia, in Krasnoyarsk Territory. Abakan (the capital) and Chernogo...Hippocrates
(Encyclopedia)Hippocrates hĭpŏkˈrətēz [key], c.460–c.370 b.c., Greek physician, recognized as the father of medicine. He is believed to have been born on the island of Cos, to have studied under his father, ...nitrate
(Encyclopedia)nitrate, chemical compound containing the nitrate (NO3) radical. Nitrates are salts or esters of nitric acid, HNO3, formed by replacing the hydrogen with a metal (e.g., sodium or potassium) or a radic...mussel
(Encyclopedia)mussel, edible freshwater or marine bivalve mollusk. Mussels are able to move slowly by means of the muscular foot. They feed and breathe by filtering water through extensible tubes called siphons; a ...Gama, Vasco da
(Encyclopedia)Gama, Vasco da văˈskō də găˈmə, Port. väshˈkō dä gäˈmə [key], c.1469–1524, Portuguese navigator, the first European to journey by sea to India. His epochal voyage (1497–99) was made ...wetlands
(Encyclopedia)wetlands, low-lying ecosystem where the water table is always at or near the surface. It is divided into estuarine and freshwater systems, which may be further subdivided by soil type and plant life i...Ponce de León, Juan
(Encyclopedia)Ponce de León, Juan pŏns də lēˈŏn, Span. hwän pōnˈthā dā lāōnˈ [key], c.1460–1521, Spanish explorer, first Westerner to reach Florida. He served against the Moors of Granada, and in 14...Browse by Subject
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