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mercury poisoning
(Encyclopedia)mercury poisoning, tissue damage resulting from exposure to more than trace amounts of the element mercury or its compounds. Elemental mercury (the silver liquid familiar from thermometers) is the mos...Farragut, David Glasgow
(Encyclopedia)Farragut, David Glasgow fărˈəgət [key], 1801–70, American admiral, b. near Knoxville, Tenn. Appointed a midshipman in 1810, he first served on the frigate Essex, commanded by David Porter, his s...Faeroe Islands
(Encyclopedia)Faeroe Islands or Faröe Islands both: fârˈō [key], Dan. Færøerne, Faeroese Føroyar, group of volcanic islands (2015 est. pop. 49,000), 540 sq mi (1,399 sq km), Denmark, in the N Atlantic, betwe...Tuvalu
(Encyclopedia)Tuvalu to͞ovälˈo͞o [key], independent Commonwealth nation (2015 est. pop. 11,000), 10 sq mi (26 sq km), composed of nine low coral atolls, formerly known as the Ellice (or Lagoon) Islands, scatter...Echinodermata
(Encyclopedia) CE5 Internal anatomy of a sea star, representative of the phylum Echinodermata Echinodermata əkīˌnōdûrˈmətə [key] [Gr.,=spiny skin], phylum of exclusively marine bottom-dwelling invertebra...colloid
(Encyclopedia)colloid kŏlˈoid [key] [Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also...Erie Canal
(Encyclopedia)Erie Canal, artificial waterway, c.360 mi (580 km) long; connecting New York City with the Great Lakes via the Hudson River. Locks were built to overcome the 571-ft (174-m) difference between the leve...lobster
(Encyclopedia)lobster, marine crustacean with five pairs of jointed legs, the first bearing large pincerlike claws of unequal size adapted to crushing the shells of its prey. The segmented body of the lobster consi...Niagara Falls, waterfall, United States and Canada
(Encyclopedia)Niagara Falls, in the Niagara River, W N.Y. and S Ont., Canada; one of the most famous spectacles in North America. The falls are on the international line between the cities of Niagara Falls, N.Y., a...oceanography
(Encyclopedia)oceanography, study of the seas and oceans. The major divisions of oceanography include the geological study of the ocean floor (see plate tectonics) and features; physical oceanography, which is conc...Browse by Subject
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