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aquaculture

(Encyclopedia)aquaculture, the raising and harvesting of fresh- and saltwater plants and animals. The most economically important form of aquaculture is fish farming, an industry that accounts for an ever increasin...

Donatello

(Encyclopedia)Donatello dŏnətĕlˈō, Ital. dōnätĕlˈlō [key], c.1386–1466, Italian sculptor, major innovator in Renaissance art, b. Florence. His full name was Donato di Niccolò di Betto Bardi. In his for...

Kandinsky, Wassily

(Encyclopedia)Kandinsky, Wassily or Vasily kăndĭnˈskē, Rus. vəsēˈlyē kəndyēnˈskē [key], 1866–1944, Russian abstract painter and theorist. Usually regarded as the originator of abstract art, Kandinsky ...

stimulant

(Encyclopedia)stimulant, any substance that causes an increase in activity in various parts of the nervous system or directly increases muscle activity. Cerebral, or psychic, stimulants act on the central nervous s...

Zika virus

(Encyclopedia)Zika virus zēˈkə [key], single-stranded RNA virus of the genus flavivirus that infects human and primates and causes a disease known as Zika fever or zika. It is primarily transmitted by the bite o...

liver

(Encyclopedia)liver, largest glandular organ of the body, weighing about 3 lb (1.36 kg). It is reddish brown in color and is divided into four lobes of unequal size and shape. The liver lies on the right side of th...

record player

(Encyclopedia)record player or phonograph, device for reproducing sound that has been recorded as a spiral, undulating groove on a disk. This disk is known as a phonograph record, or simply a record (see sound reco...

revolutions of 1848

(Encyclopedia)revolutions of 1848, in European history. The February Revolution in France gave impetus to a series of revolutionary explosions in Western and Central Europe. However the new French Republic did not ...

Anthony Rodney, Walter

(Encyclopedia)Rodney, Walter, 1942–1980, Scholar and revolutionary, b. Georgetown, British Guiana. Ph.D. School of African and Oriental Studies, 1966. A Pan-African...

ventilation

(Encyclopedia)ventilation, process of supplying fresh air to an enclosed space and removing from it air contaminated by odors, gases, or smoke. Proper ventilation requires also that there be a movement or circulati...