Columbia Encyclopedia

Search results

500 results found

Ångström, Anders Jöns

(Encyclopedia)Ångström, Anders Jöns änˈdərs yöns ōngˈström [key], 1814–74, Swedish physicist. He was educated at the Univ. of Uppsala and in 1839 became a member of its faculty. He is particularly noted...

phenyl

(Encyclopedia)phenyl fĕnˈəl [key], C6H5, organic free radical or alkyl group derived from benzene by removing one hydrogen atom. ...

tartar

(Encyclopedia)tartar or argol ärˈgəl [key], impure potassium hydrogen tartrate deposited as a crust in fermenting vessels during wine making. When purified, it yields cream of tartar. Tartar is the chief natural...

Mombert, Alfred

(Encyclopedia)Mombert, Alfred älˈfrĕt mômˈbĕrt [key], 1872–1942, German poet. He was briefly a lawyer and public official. His works, characterized by mysticism, fantasy, and simplicity of style, include Di...

absentee ownership

(Encyclopedia)absentee ownership, system under which a person (or a corporation) controls and derives income from land in a region where he does not reside. Abuses existed in absenteeism in pre-Revolutionary France...

neurasthenia

(Encyclopedia)neurasthenia nyo͝orˌəsthēˈnēa [key], condition characterized by general lassitude, irritability, lack of concentration, worry, and hypochondria. The term was introduced into psychiatry in 1869 b...

Oświęcim

(Encyclopedia)Oświęcim ôshvyĕNˈchēm [key], Ger. Auschwitz, town (1992 est. pop. 45,100), Małopolskie prov., SE Poland. It is a railway junction and industrial center producing chemicals, leather, and agricul...

mercurous chloride

(Encyclopedia)mercurous chloride, mercury (I) chloride, or calomel, chemical compound, Hg2Cl2, a white crystalline powder, very slightly soluble in water. It was once used medicinally as a purgative, cathartic, li...

Sturza, Dimitrie A.

(Encyclopedia)Sturza or Sturdza, Dimitrie A. both: dēmēˈtrēyĕ sto͝orˈdzə [key], 1833–1914, Romanian statesman, of a prominent Moldavian family. With Ion Bratianu and Constantin Rosetti he helped bring abo...

Lipscomb, William Nunn, Jr.

(Encyclopedia)Lipscomb, William Nunn, Jr. lĭpˈskəm [key], 1919–2011, American physical chemist, b. Cleveland, Ph.D. California Institute of Technology, 1946. A professor of chemistry at the Univ. of Minnesota ...