Columbia Encyclopedia

Search results

355 results found

fossil

(Encyclopedia)fossil, remains or imprints of plants or animals preserved from prehistoric times by the operation of natural conditions. Fossils are found in sedimentary rock, asphalt deposits, and coal and sometime...

Ivan IV

(Encyclopedia)Ivan IV or Ivan the Terrible, 1530–84, grand duke of Moscow (1533–84), the first Russian ruler to assume formally the title of czar. In his later years, Ivan's character, always stern, grew tyra...

Houston

(Encyclopedia)Houston, city (2020 pop. 2,304,580), seat of Harris co., SE Tex., a deepwater port on the Houston Ship Channel; inc. 1837. Harrisburg (now part of Hou...

ivory

(Encyclopedia)ivory, type of dentin present only in the tusks of the elephant. Ivory historically has been obtained mainly from Africa, where elephant tusks are larger than they are in Asia, the second major source...

Papua, province, Indonesia

(Encyclopedia)Papua ĭrˈēän jīˈyə [key], province (2014 est pop. 3,486,000), 123,180 sq mi (319,036 sq km), Indonesia. Comprising most of the western half of New Guinea and a number of offshore islands, it is...

meteorite

(Encyclopedia)meteorite, meteor that survives the intense heat of atmospheric friction and reaches the earth's surface. Because of the destructive effects of this friction, only the very largest meteors become mete...

mummy

(Encyclopedia)mummy, dead human or animal body preserved by embalming or by unusual natural conditions. As a rule mummies are from ancient times. The word is of Arabic derivation and refers primarily to the burials...

fur

(Encyclopedia)fur, hairy covering of an animal, especially the skins of animals that have thick, soft, close-growing hair next to the skin itself and coarser protective hair above it. The underhair is frequently ca...

Volga

(Encyclopedia)Volga vŏlˈgə, Rus. vôlˈgə [key], river, c.2,300 mi (3,700 km) long, central and E European Russia. It is the longest river of Europe and the principal waterway of Russia, being navigable (with l...

Manchuria

(Encyclopedia)Manchuria măncho͝orˈēə [key], Mandarin Dongbei sansheng [three northeastern provinces], region, c.600,000 sq mi (1,554,000 sq km), NE China. It is officially known as the Northeast. Manchuria is ...