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Weierstrass, Karl Wilhelm Theodor

(Encyclopedia)Weierstrass, Karl Wilhelm Theodor kärl vĭlˈhĕlm tāˈōdōr vīˈərshträs [key], 1815–97, German mathematician. From 1864 he was professor of mathematics at the Univ. of Berlin. His developmen...

Hänsch, Theodor Wolfgang

(Encyclopedia)Hänsch, Theodor Wolfgang, 1941–, German physicist, Ph.D. Heidelberg, 1969. He was a professor at Stanford from 1975 to 1986 and then became head of the Max Planck Institute for Quantum Optics, Garc...

Hoffmann, Ernst Theodor Amadeus

(Encyclopedia)Hoffmann, Ernst Theodor Amadeus ĕrnst tāˈōdōr ämädāˈo͝os hôfˈmän [key], 1776–1822, German romantic novelist and composer, a lawyer. At one time an opera composer and musical director at...

Dalberg, Karl Theodor, Freiherr von

(Encyclopedia)Dalberg, Karl Theodor, Freiherr von kärl tāˈədôrˌ frīˈhĕr fôn dälˈbĕrk [key], 1744–1817, German statesman, of an ancient noble family prominent in imperial service. He was archbishop-el...

Schleiden, Matthias Jakob

(Encyclopedia)Schleiden, Matthias Jakob mätēˈäs yäˈkôp shlīˈdən [key], 1804–81, German botanist. He was professor at the universities of Jena (1839–63) and Dorpat (1863–64). With Theodor Schwann, he...

Roon, Albrecht Theodor Emil, Graf von

(Encyclopedia)Roon, Albrecht Theodor Emil, Graf von älˈbrĕkht tāˈōdôr āˈmēl gräf fən rōn [key], 1803–79, Prussian field marshal. A military reformer, he insistently pleaded for the reorganization of ...

Kölliker, Albert von

(Encyclopedia)Kölliker, Albert von älˈbĕrt fən köˈlĭkər [key], 1817–1905, Swiss physiologist and histologist. He was professor of physiology and of microscopic and comparative anatomy at Würzburg from 1...

Lützow, Adolf, Freiherr von

(Encyclopedia)Lützow, Adolf, Freiherr von äˈdôlf frīˈhĕr fən lüˈtsō [key], 1782–1834, Prussian officer. He commanded (1813–14) a volunteer corps, the Black Troops (or Black Rifles), in the War of Lib...

cell, in biology

(Encyclopedia)CE5 Animal cell cell, in biology, the unit of structure and function of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrati...

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