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Todd, Sir Alexander Robertus

(Encyclopedia)Todd, Sir Alexander Robertus, 1907–97, Scottish biochemist, Ph.D., Univ. of Frankfurt am Main, 1931; Oxford, 1933. Todd held posts at Edinburgh Univ. (1934–36), the Lister Institute of Preventive ...

Zhanjiang

(Encyclopedia)Zhanjiang or Chankiang both: jän-jyäng [key], Cantonese Tsamkong, official Chinese name for the former French territory of Kwangchowan (325 sq mi/840 sq km) on Guangzhou Bay, S Guangdong prov., Chin...

Saint-Dié

(Encyclopedia)Saint-Dié săN-dyā [key], city (1990 pop. 23,670), Vosges dept., E France, in Lorraine, on the Meurthe River. It is an industrial center where foundry products, chemical products, and machinery are ...

Sète

(Encyclopedia)Sète, formerly Cette both: sĕt [key], town (1990 pop. 41,916), Hérault dept., S France, in Languedoc, on the Mediterranean. It is one of the most important commercial and fishing ports of S France,...

Stendal

(Encyclopedia)Stendal shtĕnˈdäl [key], city (1994 pop. 47,252), Saxony-Anhalt, N central Germany, on the Uchte River. It is a major rail junction and has sugar refineries, metalworks, food canneries, and chemica...

Bernoulli

(Encyclopedia)Bernoulli or Bernouilli both: bĕrno͞oyēˈ [key], name of a family distinguished in scientific and mathematical history. The family, after leaving Antwerp, finally settled in Basel, Switzerland, whe...

enthalpy

(Encyclopedia)enthalpy ĕnˈthălpē [key], measure of the heat content of a chemical or physical system; it is a quantity derived from the heat and work relations studied in thermodynamics. As a system changes fro...

hydrogen chloride

(Encyclopedia)hydrogen chloride, chemical compound, HCl, a colorless, poisonous gas with an unpleasant, acrid odor. It is very soluble in water and readily soluble in alcohol and ether. It fumes in moist air. It is...

hydrolysis

(Encyclopedia)hydrolysis hīdrŏlˈĭsĭs [key], chemical reaction of a compound with water, usually resulting in the formation of one or more new compounds. The most common hydrolysis occurs when a salt of a weak ...

amino group

(Encyclopedia)amino group, in chemistry, functional group that consists of a nitrogen atom attached by single bonds to hydrogen atoms, alkyl groups, aryl groups, or a combination of these three. An organic compound...