Columbia Encyclopedia

Search results

485 results found

atmosphere

(Encyclopedia)CE5 Atmosphere atmosphere [Gr.,=sphere of air], the mixture of gases surrounding a celestial body with sufficient gravity to maintain it. Although some details about the atmospheres of other plane...

respiration

(Encyclopedia)CE5 Respiratory system respiration, process by which an organism exchanges gases with its environment. The term now refers to the overall process by which oxygen is abstracted from air and is tran...

Cheyenne, indigenous people of North America

(Encyclopedia)Cheyenne shīănˈ, –ĕnˈ [key], indigenous people of North America whose language belongs to the Algonquian branch of the Algonquian-Wakashan linguistic stock (see Native American languages). The ...

Honolulu

(Encyclopedia)Honolulu hŏnˌəlo͞oˈlo͞o, hōnō– [key], city (2020 pop. 350,964), capital of ...

Pisa

(Encyclopedia)Pisa pēˈsä [key], city (1991 pop. 98,928), capital of Pisa prov., Tuscany, N central Italy, on the Arno River. It is now c.6 mi (9.7 km) from the Tyrrhenian Sea, which once reached the city. Pisa i...

yellow fever

(Encyclopedia)yellow fever, acute infectious disease endemic in tropical Africa and many areas of South and Central America. Yellow fever is caused by a virus transmitted by the bite of the female Aedes aegypti mos...

Carter, Jimmy

(Encyclopedia)Carter, Jimmy (James Earl Carter, Jr.), 1924–, 39th President of the United States (1977–81), b. Plains, Ga, grad. Annapolis, 1946. Carter served in the navy, where he worked with Admiral Hyman G....

dark matter

(Encyclopedia)dark matter, material that is believed to make up nearly 27% of the mass of the universe but is not readily visible because it neither emits nor reflects electromagnetic radiation, such as light or ra...

chronic fatigue syndrome

(Encyclopedia)chronic fatigue syndrome (CFS) or myalgic encephalomyelitis (ME), collection of persistent, debilitating symptoms, the most notable of which is severe, lasting fatigue. It is also known as systemic ex...

factory

(Encyclopedia)factory, place of production characterized by wage labor, the use of machinery, and the division of labor. The large-scale use of machinery differentiates factory production from simple manufacture, a...