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Arciniegas, Germán

(Encyclopedia)Arciniegas, Germán hĕrmänˈ ärsēnyāˈgäs [key], 1900–1999, Colombian historian and diplomat. A leading Latin American intellectual, he gained prominence as a journalist and publisher. A criti...

germ warfare

(Encyclopedia)germ warfare: see biological warfare. ...

Weismann, August

(Encyclopedia)Weismann, August ouˈgo͝ost vīsˈmän [key], 1834–1914, German biologist. He taught zoology at the Univ. of Freiburg from 1866 to 1912. He is known as the originator of the germ-plasm theory of he...

Bretonneau, Pierre

(Encyclopedia)Bretonneau, Pierre pyĕr brətônōˈ [key], 1778–1862, French physician. He performed (1825) the first successful tracheotomy for laryngeal diphtheria, wrote a treatise (1826) distinguishing betwee...

Hertwig, Oscar

(Encyclopedia)Hertwig, Oscar ôsˈkär hĕrtˈvĭkh [key], 1849–1922, German embryologist. He studied medicine with Haeckel and Gegenbaur. In 1875 he established the fact that fertilization consists of the union ...

hominy

(Encyclopedia)hominy [Algonquian], hulled corn with the germ removed and served either ground or whole. The pioneers in North America prepared it by soaking the kernels in weak wood lye until the hulls floated to t...

biological warfare

(Encyclopedia)biological warfare, employment in war of microorganisms to injure or destroy people, animals, or crops; also called germ or bacteriological warfare. Limited attempts have been made in the past to spre...

Baer, Karl Ernst von

(Encyclopedia)Baer, Karl Ernst von, 1792–1876, Estonian biologist. He was a professor at Würzburg and Königsberg and from 1834 at St. Petersburg. Considered a founder of modern embryology, he discovered the not...

heredity

(Encyclopedia)heredity, transmission from generation to generation through the process of reproduction in plants and animals of factors which cause the offspring to resemble their parents. That like begets like has...

chromosome

(Encyclopedia)chromosome krōˈməsōmˌ [key], structural carrier of hereditary characteristics, found in the nucleus of every cell and so named for its readiness to absorb dyes. The term chromosome is usually res...

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