Columbia Encyclopedia

Search results

219 results found

McCullers, Carson

(Encyclopedia)McCullers, Carson, 1917–67, American novelist, b. Columbus, Ga. as Lula Carson Smith, studied at Columbia. The central theme of her novels is the spiritual isolation that underlies the human conditi...

Altaic

(Encyclopedia)Altaic ăltāˈĭk [key], subfamily of the Ural-Altaic family of languages (see Uralic and Altaic languages). Some scholars still consider Altaic an independent linguistic family. Spoken by over 130 m...

Brownian movement

(Encyclopedia)Brownian movement or motion, zigzag, irregular motion exhibited by minute particles of matter when suspended in a fluid. The effect has been observed in all types of colloidal suspensions (see colloid...

Fish, Hamilton, 1808–93, American statesman

(Encyclopedia)Fish, Hamilton, 1808–93, American statesman, b. New York City, grad. Columbia, 1827; son of Nicholas Fish (1758–1833). He studied law and was admitted to the bar in 1830. Named for his father's fr...

Lepidodendron and Sigillaria

(Encyclopedia)Lepidodendron sĭjĭlârˈēə [key], two principal genera of an extinct group of primitive vascular trees. They dominated the forests of the early Carboniferous period until the ferns gained ascendan...

mousebird

(Encyclopedia)mousebird or coly kōˈlē [key], common name for small, slender birds, comprising six species in the single genus Colius of the family Coliidae. They resemble mice in their soft, hairlike body feathe...

harvester

(Encyclopedia)harvester, farm machine that mechanically harvests a crop. Small-grain harvesting has been mechanized to a certain extent since early times. In the modern period the first harvester to gain general ac...

germination

(Encyclopedia)germination, in a seed, process by which the plant embryo within the seed resumes growth after a period of dormancy and the seedling emerges. The length of dormancy varies; the seed of some plants (e....

bald cypress

(Encyclopedia)bald cypress, common name for members of the Taxodiaceae, a small family of deciduous or evergreen conifers with needlelike or scalelike leaves and woody cones. Most species of the family are trees of...

pruning

(Encyclopedia)pruning, the horticultural practice of cutting away an unwanted, unnecessary, or undesirable plant part, used most often on trees, shrubs, hedges, and woody vines. Man uses pruning to remove diseased ...