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tuba

(Encyclopedia)tuba to͞oˈbə [key] [Lat.,=trumpet], valved brass wind musical instrument of wide conical bore. The term tuba is applied rather loosely to any low-pitched brass instrument other than the trombone; s...

pyridine

(Encyclopedia)pyridine ăzˈēn [key], C5H5N, colorless, flammable, toxic liquid with a putrid odor. It melts at −42℃ and boils at 115.5℃. Chemically, it is a heterocyclic aromatic tertiary amine (see under a...

Queensberry, John Sholto Douglas, 8th marquess of

(Encyclopedia)Queensberry, John Sholto Douglas, 8th marquess of, 1844–1900, British nobleman, originator of the code of rules that governs modern boxing. He served in the British army and navy and later was a mem...

boxing

(Encyclopedia)boxing, sport of fighting with fists, also called pugilism and prizefighting. Amateur boxing, while not free from debate, has in recent decades taken steps to ensure safety and objective judging. Th...

CERN

(Encyclopedia)CERN or European Organization for Nuclear Research, nuclear and particle physics research center straddling the French-Swiss border W of Geneva, Switzerland. Established in 1952 as the provisional Eur...

tarweed

(Encyclopedia)tarweed, any of several related resinous herbs (chiefly species of Hemizonia and Madia) of the family Asteraceae (aster family), having strongly scented and sticky herbage. Most North American species...

Belgian sheepdog

(Encyclopedia)Belgian sheepdog, sometimes called Groenendael, breed of sturdy working dog developed from a wide assortment of sheepherding dogs in Belgium in the early 20th cent. It stands from 22 to 26 in. (55.9�...

Bristow, Benjamin Helm

(Encyclopedia)Bristow, Benjamin Helm brĭsˈtō [key], 1832–96, American cabinet officer, b. Elkton, Ky. He was admitted to the Kentucky bar in 1853. Bristow, a Union officer in the Civil War, was a state senator...

motor, electric

(Encyclopedia)CE5 Motor: In the AC motor, current fed to the conducting loop of wire causes it to rotate in the magnetic field, thus turning the shaft on which the loop is mounted. In the DC motor, the direction...

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...