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Neptune, in astronomy

(Encyclopedia)Neptune, in astronomy, 8th planet from the sun at a mean distance of about 2.8 billion mi (4.5 billion km) with an orbit lying between those of Uranus and the dwarf planet Pluto; its period of revolut...

fish, in zoology

(Encyclopedia)CE5 Anatomy of a ray-finned fish fish, limbless aquatic vertebrate animal with fins and internal gills. Traditionally the living fish have been divided into three class: the primitive jawless fish...

mass transit

(Encyclopedia)mass transit, public transportation systems designed to move large numbers of passengers. The history of mass transportation is intimately connected to industrialization, urbanization, and the sepa...

lintel

(Encyclopedia)lintel, in architecture, the horizontal member that spans an opening, such as a door or window, or that connects two columns. The post-and-lintel, or trabeated, system of construction, with spans limi...

Kennan, George

(Encyclopedia)Kennan, George, 1845–1924, American authority on Siberia, b. Norwalk, Ohio. In 1864 he made the first of his journeys to East Asia as an engineer. His articles on Siberia, for many years almost the ...

amobarbital

(Encyclopedia)amobarbital ămˌōbärˈbĭtäl [key], drug that acts as a nervous system depressant. See barbiturate. ...

Ganymede, in astronomy

(Encyclopedia)Ganymede gănˈēmēdˌ [key], in astronomy, one of the moons, or natural satellites, of Jupiter; the largest natural satellite in the solar system, it is larger than the planet Mercury. ...

Cincinnati, University of

(Encyclopedia)Cincinnati, University of, at Cincinnati; coeducational; founded 1819 as Cincinnati College, incorporated 1870 as a municipal university, opened 1873, affiliated with the state university system 1968....

Fabricius, Johan Christian

(Encyclopedia)Fabricius, Johan Christian yōhănˈ krĭsˈtyän fäbrēˈsyo͝os [key], 1745–1808, Danish entomologist. Influenced by the methods of Linnaeus, under whom he studied, he devised a system of classif...

azimuth

(Encyclopedia)azimuth ăzˈəməth [key], in astronomy, one coordinate in the altazimuth coordinate system. It is the angular distance of a body measured westward along the celestial horizon from the observer's sou...