Columbia Encyclopedia

Search results

500 results found

International style, in architecture

(Encyclopedia)International style, in architecture, the phase of the modern movement that emerged in Europe and the United States during the 1920s. The term was first used by Philip Johnson in connection with a 193...

humus

(Encyclopedia)humus hyo͞oˈməs [key], organic matter that has decayed to a relatively stable, amorphous state. It is an important biological constituent of fertile soil. Humus is formed by the decomposing action ...

Hatteras, Cape

(Encyclopedia)Hatteras, Cape hătˈərəs [key], promontory on Hatteras Island, a low, sandy, barrier bar between the Atlantic Ocean and Pamlico Sound, E N.C. Called the Graveyard of the Atlantic, the cape experien...

Hausa

(Encyclopedia)Hausa or Haussa both: houˈsə, –sä [key], black African ethnic group, numbering about 23 million, chiefly in N Nigeria and S Niger. The Hausa are almost exclusively Muslim and practice agriculture...

antidiuretic hormone

(Encyclopedia)antidiuretic hormone ănˌtēdīyo͞orĕtˈĭk [key], polypeptide hormone secreted by the posterior pituitary gland. Its principal action is to regulate the amount of water excreted by the kidneys. An...

hernia

(Encyclopedia)hernia, protrusion of an internal organ or part of an organ through the wall of a body cavity. The hernia is enclosed by a sac formed by the lining of the cavity. It results from a weakness or rupture...

gypsum

(Encyclopedia)gypsum jĭpˈsəm [key], mineral composed of calcium sulfate (calcium, sulfur, and oxygen) with two molecules of water, CaSO4·2H2O. It is the most common sulfate mineral, occurring in many places in ...

Guarini, Guarino

(Encyclopedia)Guarini, Guarino gwärēˈnō gwärēˈnē [key], 1624–83, Italian architect, mathematician, and writer. He was one of the first to analyze with perceptivity the structure of medieval architecture, ...

notochord

(Encyclopedia)notochord nōˈtəkôrdˌ [key], in biology, supporting rod running most of the length of animals of the phylum Chordata and present at varying times in the life cycle. Composed of large cells packed ...

Noyes, Alfred

(Encyclopedia)Noyes, Alfred noiz [key], 1880–1958, English poet, best known for his poems “The Highwayman” and “The Barrel-Organ.” His first volume of verse, Loom of Years, appeared in 1902. It was follow...