Columbia Encyclopedia

Search results

500 results found

tapeworm

(Encyclopedia)tapeworm, name for the parasitic flatworms forming the class Cestoda. All tapeworms spend the adult phase of their lives as parasites in the gut of a vertebrate animal (called the primary host). Most ...

degree-day

(Encyclopedia)degree-day, a unit of measure used to estimate the fuel and power requirements in heating and cooling a building; it is equal to a difference of 1 degree between the outdoor daily average temperature ...

feedback

(Encyclopedia)CE5 Basic feedback control system feedback, arrangement for the automatic self-regulation of an electrical, mechanical, or biological system by returning part of its output as input. A simple exam...

Narayan, R. K.

(Encyclopedia)Narayan, R. K. (Rasipuram Krishnaswami Narayan) nərīˈyän [key], 1906–2001, Indian novelist, b. Madras (now Chennai). Narayan, who wrote in English, published his first novel, Swami and Friends, ...

King, William Lyon Mackenzie

(Encyclopedia)King, William Lyon Mackenzie, 1874–1950, Canadian political leader, b. Kitchener, Ont.; grandson of William Lyon Mackenzie. An expert on labor questions, he served in Wilfrid Laurier's Liberal admin...

Knossos

(Encyclopedia)Knossos or Cnossus both: nŏsˈəs [key], ancient city of Crete, on the north coast, near modern Iráklion. The site was occupied long before 3000 b.c., and it was the center of an important Bronze Ag...

Turner, Frederick Jackson

(Encyclopedia)Turner, Frederick Jackson, 1861–1932, American historian, b. Portage, Wis. He taught at the Univ. of Wisconsin from 1885 to 1910 except for a year spent in graduate study at Johns Hopkins. From 1910...

Twenty-one Demands

(Encyclopedia)Twenty-one Demands (1915), instrument by which Japan secured temporary hegemony over China. Japan used its declaration of war against Germany (Aug., 1914) as grounds for invading Kiaochow, the German ...

Washington, Denzel

(Encyclopedia) Washington, Denzel (Denzel Hayes Washington Jr.), 1954- , African-American actor, b. Mount Vernon, N.Y., Fordham Univ. (B.A., 1977). Washington’s fa...

Welles, Sumner

(Encyclopedia)Welles, Sumner, 1892–1961, American diplomat, b. New York City. Welles began his diplomatic career as secretary of the U.S. embassy at Tokyo (1915–17). Attached to the embassy at Buenos Aires (191...