Columbia Encyclopedia

Search results

500 results found

Platyhelminthes

(Encyclopedia)CE5 A. Planaria, representative of the phylum Platyhelminthes B. Internal anatomy of Planaria Platyhelminthes plătˌēhĕlmĭnˈthēz [key], phylum containing about 20,000 species of soft-bodied,...

Piaget, Jean

(Encyclopedia)Piaget, Jean zhäNpyäˈjā [key], 1896–1980, Swiss psychologist, known for his research in developmental psychology. After receiving a degree in zoology from the Univ. of Neuchâtel (1918), Piaget'...

crayfish

(Encyclopedia)crayfish or crawfish, freshwater crustacean smaller than but structurally very similar to its marine relative the lobster, and found in ponds and streams in most parts of the world except Africa. Cray...

Chinook, indigenous people of North America

(Encyclopedia)Chinook shĭno͝okˈ, chĭ– [key], Native American tribe of the Penutian linguistic stock. Altogether twelve main tribes spoke Chinook languages; all were in the Columbia River valley. The Chinook t...

fisher

(Encyclopedia)fisher, name of a large North American marten, Martes pennanti. This carnivorous, largely arboreal mammal is found in hardwood forests of Canada, the extreme N United States, and mountain ranges of th...

Anaximander

(Encyclopedia)Anaximander ənăkˌsĭmănˈdər [key], c.611–c.547 b.c., Greek philosopher, b. Miletus; pupil of Thales. He made the first attempt to offer a detailed explanation of all aspects of nature. Anaxima...

Little Rock

(Encyclopedia)Little Rock, city (1990 pop. 175,795), state capital and seat of Pulaski co., central Ark., on the Arkansas River; inc. 1831. It is a river port and the administrative, commercial, transportation, and...

Kalidasa

(Encyclopedia)Kalidasa käˌlĭdäˈsə [key], fl. 5th cent.?, Indian dramatist and poet. He is regarded as the greatest figure in classical Sanskrit literature. Except that he was retained by the Gupta court, no f...

kookaburra

(Encyclopedia)kookaburra ko͝okˈəbûrˌə [key], common name for a squat, long-tailed Australian kingfisher, Dacelo novaeguineae. It is one of the largest birds of the family Alcedinidae (kingfisher family). Beca...

trilobite

(Encyclopedia)CE5 Dorsal view of a trilobite trilobite trīˈləbītˌ [key], subphylum of the phylum Arthropoda that includes a large group of extinct marine animals that were abundant in the Paleozoic era. Th...