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trade

(Encyclopedia) trade, traffic in goods. Conducted by gift, barter, or sale, trade is one of the most widespread of all social institutions. The theory of commerce as imposed by the national state…

Andromeda Galaxy

(Encyclopedia) Andromeda Galaxy, cataloged as M31 and NGC 224, the closest large galaxy to the Milky Way and the only one visible to the naked eye in the Northern Hemisphere. It is also known as the…

Hercules cluster

(Encyclopedia) Hercules cluster, giant globular star cluster in the northern constellation Hercules; cataloged as M13 or NGC 6205. The cluster is just visible to the naked eye and is the best example…

bellflower, in botany

(Encyclopedia) bellflower or bluebell, name commonly used as a comprehensive term for members of the Campanulaceae, a family of chiefly herbaceous annuals or perennials of wide distribution,…

Cerro Tololo Inter-American Observatory

(Encyclopedia) Cerro Tololo Inter-American ObservatoryCerro Tololo Inter-American Observatorysāˈrō tōlōˈlō [key], astronomical observatory located on Cerro Tololo peak, Chile, with offices in La…

badminton

(Encyclopedia) badmintonbadmintonbădˈmĭntən [key], game played by volleying a shuttlecock (called a “bird”)—a small, cork hemisphere to which feathers are attached—over a net. Light, gut-strung…

stickleback

(Encyclopedia) stickleback, common name for members of the family Gasterosteidae, small fishes, widely distributed in both fresh- and saltwaters of the Northern Hemisphere. Sticklebacks range from 11…