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terrarium

(Encyclopedia)terrarium, a miniature garden in an artificial environment, in which small plants and animals may be kept as ornament or for educational purposes. Fish bowls, small fish tanks, large bottles, and carb...

hypertension

(Encyclopedia)hypertension or high blood pressure, elevated blood pressure resulting from an increase in the amount of blood pumped by the heart or from increased resistance to the flow of blood through the small a...

nicotine

(Encyclopedia)nicotine, C10H14N2, poisonous, pale yellow, oily liquid alkaloid with a pungent odor and an acrid taste. It turns brown on exposure to air. Nicotine, a naturally occurring constituent of tobacco, is t...

Michigan, Lake

(Encyclopedia)Michigan, Lake, 22,178 sq mi (57,441 sq km), 307 mi (494 km) long and 30 to 120 mi (48–193 km) wide, bordered by Mich., Ind., Ill., and Wis.; third largest of the Great Lakes and the only one entire...

plutonium

(Encyclopedia)plutonium plo͞otōˈnēəm [key], radioactive chemical element; symbol Pu; at. no. 94; mass no. of most stable isotope 244; m.p. 641℃; b.p. 3,232℃; sp. gr. 19.84 at 20℃; valence +3, +4, +5, or ...

Beaverton

(Encyclopedia)Beaverton, city (2020 pop. 99,561), Washington co., NW Oreg., a suburb of Portland, in a farm area; inc. 1893. Beaverton is the heart of the Silicon For...

blue baby

(Encyclopedia)blue baby, infant born with a congenital heart defect that causes a bluish coloration of the skin as a result of cyanosis (deoxygenated blood). The color is most noticeable around the lips and at the ...

Dee, rivers, Scotland

(Encyclopedia)Dee. 1 River, c.90 mi (140 km) long, rising in the Cairngorms, Aberdeenshire, E Scotland, and flowing E past Ballater to the North Sea through an artificial channel at Aberdeen. The channel was constr...

De-shima

(Encyclopedia)De-shima dāˈ-jĭmä [key], artificial island, c.40 acres (16 hectares), Nagasaki prefecture, W Kyushu, Japan, in Nagasaki harbor. It has many docks and is connected by bridge to the city of Nagasaki...

Fischer, Hans

(Encyclopedia)Fischer, Hans, 1881–1945, German organic chemist, Ph.D. Univ. of Marburg, 1904; M.D. Univ. of Munich, 1908. Fischer was a professor at the Univ. of Innsbruck from 1916 to 1918 and at the Univ. of Vi...