Columbia Encyclopedia

Search results

500 results found

Apatosaurus

(Encyclopedia)Apatosaurus ăpˌətəsôrˈəs, āˌpătˌə– [key], [Gr.,=deceptive lizard], quadruped saurischian dinosaur, estimated to be from 70 to 90 ft (21 to 27 m) in length and to weigh up to 30 tons (27 ...

day

(Encyclopedia)day, period of time for the earth to rotate once on its axis. The ordinary day, or solar day, is measured relative to the sun, being the time between successive passages of the sun over a stationary o...

badger

(Encyclopedia)badger, name for several related members of the weasel family. Most badgers are large, nocturnal, burrowing animals, with broad, heavy bodies, long snouts, large, sharp claws, and long, grizzled fur. ...

woodpecker

(Encyclopedia)woodpecker, common name for members of the Picidae, a large family of climbing birds found in most parts of the world. Woodpeckers typically have sharp, chisellike bills for pecking holes in tree trun...

Haile Gebrselassie

(Encyclopedia)Haile Gebrselassie, 1973–, Ethiopian track athlete. Adept at both indoor and outdoor distance events as well as long-distance cross-country and marathon running, Haile won major races in distances r...

Croton Aqueduct

(Encyclopedia)Croton Aqueduct krōˈtən [key], 38 mi (61 km) long, SE N.Y., carrying water from the Croton River basin to New York City; built 1837–42. It was one of the earliest modern aqueducts in the United S...

Shetland pony

(Encyclopedia)Shetland pony, smallest breed of horse, originating in the Shetland Islands some 200 mi (322 km) N of Scotland. The Shetland resembles a miniature draft horse and has long been used for working purpos...

Platte

(Encyclopedia)Platte, river, c.310 mi (500 km) long, formed by the confluence of the North Platte (680 mi/1,090 km long) and South Platte (430 m/690 km) rivers at North Platte, Neb. It flows generally E across S Ne...

Saimaa

(Encyclopedia)Saimaa sīˈmä [key], lake system c.1,850 sq mi (4,790 sq km), occupying the heavily glaciated plateau of S central Finland. It comprises more than 120 connecting lakes; the large southern basin of t...

Romsdalen

(Encyclopedia)Romsdalen ro͞omsˈdälˌĕn [key], valley, c.60 mi (100 km) long, in Møre og Romsdal co., SW Norway, flanked by the mountains of Dovrefjell. It is an ancient passage from the western coast to S Norw...