Columbia Encyclopedia

Search results

394 results found

Hitchings, George Herbert

(Encyclopedia)Hitchings, George Herbert, 1905–98, American pharmacologist, b. Hoquiam, Wash., Ph.D. Harvard, 1933. Hitchings spent most of his career at Burroughs Wellcome Laboratories (1942–75), where he and f...

digitalis

(Encyclopedia)digitalis dĭjˌĭtălˈĭs [key], any of several chemically similar drugs used primarily to increase the force and rate of heart contractions, especially in damaged heart muscle. The effects of the d...

Michoacán

(Encyclopedia)Michoacán mēchōäkänˈ [key], state (1990 pop. 3,548,199), 23,202 sq mi (60,093 sq km), S Mexico. Morelia is the capital. Dominated by the mountains of the Sierra Madre Occidental and the volcanic...

beta-blocker

(Encyclopedia)beta-blocker or beta-adrenergic blocking agent bāˈtə ădˌrənûrˈjĭk [key], drug that reduces the symptoms connected with hypertension, cardiac arrhythmias, angina pectoris, migraine headaches, ...

leprosy

(Encyclopedia)leprosy or Hansen's disease hănˈsənz [key], chronic, mildly infectious malady capable of producing, when untreated, various deformities and disfigurements. It is caused by the rod-shaped bacterium ...

hepatitis

(Encyclopedia)hepatitis hĕpˌətīˈtĭs [key], inflammation of the liver. There are many types of hepatitis. Causes include viruses, toxic chemicals, alcohol consumption, parasites and bacteria, and certain drugs...

food adulteration

(Encyclopedia)food adulteration, act of intentionally debasing the quality of food offered for sale either by the admixture or substitution of inferior substances or by the removal of some valuable ingredient. The ...

Eagle Pass

(Encyclopedia)Eagle Pass, city (2020 pop. 28,130), seat of Maverick co., W Tex., a port of entry on the Rio Grande opposite Piedras Negras, Mexico; inc. 1918. Linked ...

lincomycin

(Encyclopedia)lincomycin lĭngˌkōmīˈsĭn [key], antibiotic isolated from bacteria of the genus Streptomyces. Similar in activity to erythromycin, it is effective against most gram-positive organisms including s...

Trudeau, Garry Beekman

(Encyclopedia)Trudeau, Garry Beekman tro͞oˈdō [key], 1948–, American political cartoonist, b. New York City. Since its debut in 1969, his comic strip “Doonesbury” has satirized contemporary events, persona...