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toxemia

(Encyclopedia)toxemia tŏksēˈmēə [key], disease state caused by the presence in the blood of bacterial toxins or other harmful substances. The effects of the bacterial toxins known as endotoxins are relatively ...

Richelieu, Armand Emmanuel du Plessis, duc de

(Encyclopedia)Richelieu, Armand Emmanuel du Plessis, duc de ärmäNˈ ĕmänüĕlˈ dü plĕsēˈ dük də rēshəlyöˈ [key], 1766–1822, French statesman. An émigré from the French Revolution, he served Russi...

adaptation

(Encyclopedia)adaptation, in biology, has several meanings. It can mean the adjustment of living matter to environmental conditions and to other living things either in an organism's lifetime (physiological adaptat...

hydrogen

(Encyclopedia)hydrogen hīˈdrəjən [key] [Gr.,=water forming], gaseous chemical element; symbol H; at. no. 1; interval in which at. wt. ranges 1.00784–1.00811; m.p. −259.14℃; b.p. −252.87℃; density 0.08...

hardness

(Encyclopedia)hardness, property of matter commonly described as the resistance of a substance to being scratched by another substance. The degree of hardness is relative, different substances being compared with o...

Gil Robles, José María

(Encyclopedia)Gil Robles, José María hōsāˈ märēˈä hēl rōˈblās [key], 1898–1980, Spanish politician. In 1931, after the proclamation of the Second Republic, he became leader of the newly organized rig...

Little Entente

(Encyclopedia)Little Entente äntäntˈ [key], loose alliance formed in 1920–21 by Czechoslovakia, Romania, and Yugoslavia. Its specific purposes were the containment of Hungarian revisionism (of the terms of the...

physical chemistry

(Encyclopedia)physical chemistry, branch of science that combines the principles and methods of physics and chemistry. It provides a fundamental theoretical and experimental basis for all of chemistry, including or...

Weizman, Ezer

(Encyclopedia)Weizman, Ezer āˈzər vītˈsmän [key], 1924–2005, Israeli military officer and politician, president of Israel (1993–2000), b. Tel Aviv. A nephew of Chaim Weizmann, he helped found the Israeli ...

salicylic acid

(Encyclopedia)salicylic acid or 2-hydroxybenzoic acid, C6H4(OH)CO2H, a colorless, crystalline organic carboxylic acid that melts at 159℃; it is soluble in ethanol and ether but is only slightly soluble in water. ...