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horsefly

(Encyclopedia)horsefly, common name for the large hairy flies of the family Tabanidae. Male horseflies feed on pollen and nectar, but the females suck blood as well and are common pests of animals and sometimes of ...

African swine fever

(Encyclopedia)African swine fever (ASF), highly contagious, deadly viral disease of swine. Its acute form, which is typically fatal, is characterized by high fever, loss of appetite, lethargy, and redness in the sk...

black fly

(Encyclopedia)black fly, name for any of the flies of the family Simuliidae. The black fly is about 1⁄8 in. (3.2 mm) long and has large eyes, short legs, a stout, humped back, broad gauzy wings, and piercing-suck...

adsorption

(Encyclopedia)adsorption, adhesion of the molecules of liquids, gases, and dissolved substances to the surfaces of solids, as opposed to absorption, in which the molecules actually enter the absorbing medium (see a...

Arista, Mariano

(Encyclopedia)Arista, Mariano märyäˈnō ärēˈstä [key], 1802–55, Mexican general and president (1851–53). A royalist in the revolt against Spain, he later joined Agustín de Iturbide. He fought in the Mex...

Lane, Sir Ralph

(Encyclopedia)Lane, Sir Ralph, c.1530–1603, leader of the first attempted English settlement in America, on Roanoke Island, N.C. Sent by Sir Walter Raleigh, the expedition of over 100 colonists left England in Ap...

League of Women Voters

(Encyclopedia)League of Women Voters, voluntary public service organization of U.S. citizens. Organized in 1920 in Chicago as an outgrowth of the National American Woman Suffrage Association, it had as its original...

Santana, Pedro

(Encyclopedia)Santana, Pedro pāˈᵺrō säntäˈnä [key], 1801–64, president of the Dominican Republic (1844–48, 1853–56, 1858–61). He joined the revolution that in 1844 freed his nation from Haiti and b...

Toamasina

(Encyclopedia)Toamasina tämätävˈ [key], city (1993 pop. 127,441), NE Madagascar. Situated on the Indian Ocean, it is the nation's chief port and is connected by rail with Antananarivo. Toamasina exports sugar, ...

Goren, Charles Henry

(Encyclopedia)Goren, Charles Henry gôrˈən [key], 1901–91, American expert on bridge, b. Philadelphia, grad. McGill Univ., 1922. Goren played bridge as a law student and by 1931 was competing in major tournamen...