Columbia Encyclopedia

Search results

500 results found

automobile industry

(Encyclopedia)automobile industry, the business of producing and selling self-powered vehicles, including passenger cars, trucks, farm equipment, and other commercial vehicles. By allowing consumers to commute long...

nitrogen cycle

(Encyclopedia)CE5 Nitrogen cycle nitrogen cycle, the continuous flow of nitrogen through the biosphere by the processes of nitrogen fixation, ammonification (decay), nitrification, and denitrification. Nitrogen...

life

(Encyclopedia)life, although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and ...

yoga

(Encyclopedia)yoga yōˈgə [key] [Skt.,=union], general term for spiritual disciplines in Hinduism, Buddhism, and throughout S Asia that are directed toward attaining higher consciousness and liberation from ignor...

firefly

(Encyclopedia)firefly or lightning bug, small, luminescent, carnivorous beetle of the family Lampyridae. Fireflies are well represented in temperate regions, although the majority of species are tropical and subtro...

Falun Gong

(Encyclopedia)Falun Gong dä-fä [key], movement promoting physical and spiritual well-being that became widespread China in the 1990s. Founded in 1992 by Li Hongzhi (1951?–), a former Changchun grain clerk, it c...

Interior, United States Department of the

(Encyclopedia)Interior, United States Department of the, federal executive department established in 1849, delegated custodian of U.S. natural resources, and whose head, the Secretary of the Interior, has cabinet r...

hydrothermal vent

(Encyclopedia)hydrothermal vent, crack along a rift or ridge in the deep ocean floor that spews out water heated to high temperatures by the magma under the earth's crust. Some vents are in areas of seafloor spread...

antenna

(Encyclopedia)antenna ăntĕnˈə [key], in electronics, system of wires or other conductors used to transmit or receive radio or other electromagnetic waves (see radio); sometimes called an aerial. The idea of usi...

Molotov, Vyacheslav Mikhailovich

(Encyclopedia)Molotov, Vyacheslav Mikhailovich vyĕˌchĭsläfˈ mēkhīˈləvĭch môˈlətəf [key], 1890–1986, Soviet political leader. A Communist from 1906, he changed his name from Skriabin to Molotov [the ...

Browse by Subject