Columbia Encyclopedia

Search results

500 results found

tetraethyl lead

(Encyclopedia)tetraethyl lead tĕtˌrəĕthˈəl [key], (C2H5)4Pb, viscous, colorless, poisonous liquid. It is an organometallic compound prepared by reacting ethyl chloride with a sodium-lead alloy. When added to ...

hydrogen sulfide

(Encyclopedia)hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is soluble in carbo...

hydrotherapy

(Encyclopedia)hydrotherapy, use of water in the treatment of illness or injury. Although the medicinal and hygienic value of water was recognized by the early Greeks, hydrotherapy attained its widest use in the 18t...

Wolff, Christian von

(Encyclopedia)Wolff or Wolf, Christian von krĭsˈtyän fən vôlf [key], 1679–1754, German philosopher. One of the first to use the German language instead of Latin, he systematized and popularized the doctrines...

Camelot

(Encyclopedia)Camelot kămˈəlŏt [key], in Arthurian legend, the seat of King Arthur's court. The origin of the name is unknown. It has been variously located at Cadbury Camp, Somerset; Winchester; Camelford; and...

Conkling, Roscoe

(Encyclopedia)Conkling, Roscoe, 1829–88, American politician, b. Albany, N.Y. On his admission to the bar in 1850, he was immediately appointed district attorney of Albany. The son of Alfred Conkling, Congressman...

Nederland

(Encyclopedia)Nederland nēˈdərlənd [key], city (1990 pop. 16,192), Jefferson co., SE Tex.; founded by Dutch settlers as a rice-farming community in 1897, inc. 1940. Primarily a residential suburb between Beaumo...

Piltdown man

(Encyclopedia)Piltdown man, name given to human remains found during excavations (1908–15) at Piltdown, Sussex, England, by Charles Dawson. The find led to much speculation and argument. Since they were found wit...

Leslie, Miriam Florence (Folline)

(Encyclopedia)Leslie, Miriam Florence (Folline), c.1836–1914, American publisher, b. New Orleans. She became editor of Frank Leslie's Lady's Journal in 1871 and married Leslie in 1874. After his death she skillfu...

James, Jesse

(Encyclopedia)James, Jesse (Woodson), 1847–82, American outlaw, b. Clay co., Mo. At the age of 15 he joined the Confederate guerrilla band led by William Quantrill and participated in the brutal and bloody civil ...

Browse by Subject