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Geiger, Abraham

(Encyclopedia)Geiger, Abraham gīˈgər [key], 1810–74, German rabbi, Semitic scholar and Orientalist, theologian, and foremost exponent of the Reform movement in Judaism. When he received his doctorate (1833) fr...

Geiger counter

(Encyclopedia)Geiger counter or Geiger-Müller (G-M) counter gīˈgər-mŭlˈər, –myo͞oˈlər [key], instrument for the detection and quantitative determination of ionizing radiation such as the alpha and beta ...

Geiger, Johannes Wilhelm

(Encyclopedia)Geiger, Johannes Wilhelm (Hans Geiger) gīˈgər [key], 1882–1945, German physicist. Geiger received a doctorate in physics at Erlangen in 1906, then went to Manchester, where he assisted British c...

Abraham

(Encyclopedia)Abraham [according to the Book of Genesis, Heb.,=father of many nations] or Abram āˈbrəm [key] [Heb.,=exalted father], in the Bible, progenitor of the Hebrews; in the Qur'an, ancestor of the Arabs....

Kuyper, Abraham

(Encyclopedia)Kuyper, Abraham äˈbrähäm koiˈpər [key], 1837–1920, Dutch political figure and Calvinist theologian. After holding important pastorates, he became interested in politics and engaged in politica...

Bosse, Abraham

(Encyclopedia)Bosse, Abraham äbrä-ämˈ bôs [key], 1602–76, French engraver and painter. He studied art in Paris and became a teacher of perspective in the Académie royale. A prolific and skillful worker, he ...

Calovius, Abraham

(Encyclopedia)Calovius, Abraham kəlōˈvēəs [key], 1612–86, German Lutheran theologian, whose original name was Kalan or Calan. He was (1637–43) a professor of theology at Königsberg, then pastor at Danzig,...

Goldfaden, Abraham

(Encyclopedia)Goldfaden, Abraham gōldfädˈən [key], 1840–1908, Hebrew and Yiddish playwright, b. Starokonstantinov, Russia. He was the first important Yiddish playwright and a leading figure in Yiddish theater...

Mapu, Abraham

(Encyclopedia)Mapu, Abraham mäˈpo͞o [key], 1808–67, Lithuanian novelist who wrote in Hebrew. For many years an impoverished, itinerant schoolmaster, Mapu gained financial security when he was appointed teacher...

Ortelius, Abraham

(Encyclopedia)Ortelius, Abraham ôrtēˈlyəs [key], 1527–98, Flemish geographer, of German origin. Next to his contemporary Mercator, he is the most renowned of the 16th-century Flemish school of geography. He t...