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greenhouse
greenhouse enclosed glass house used for growing plants in regulated temperatures, humidity, and ventilation. A greenhouse can range from a small room carrying a few plants over the winter, to an immense heated glass building called a hothouse or conservatory, covering acres of ground and used for ...
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Sir Joseph Paxton
Sir Joseph Paxton 1803-65, English architect, noted for his use of glass and iron in a proto-modern manner. Beginning his career as a gardener and estate manager, he then built two greenhouses at Chatsworth, Derbyshire, for the duke of Devonshire. The first was the great conservatory (1836-40); the...
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‘greenhouse effect’
‘greenhouse effect’ The effect of heat retention in the lower atmosphere as a result of absorption and reradiation of long-wave (more than 4 μm) terrestrial radiation by clouds and gases (e.g. water vapour and carbon dioxide). The insulating effect is not strictly analogous to th...
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Richard Alsop
Richard Alsop 1761-1815, American author, b. Middletown, Conn. Best remembered as one of the Connecticut Wits , he collaborated with Theodore Dwight and others in writing light satiric verse for the Political Greenhouse and the Echo.
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bird-of-paradise flower
bird-of-paradise flower large tropical herb ( Strelitzia reginae ) of the family Musaceae ( banana family), native to S Africa. Its large blue and orange blossom resembles an exotic bird; it is cultivated as an ornamental in warmer regions and as a greenhouse plant, and is sold as a florists' cut ...
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cold frame
cold frame in horticulture, sun-heated board frame covered with a removable top of glass or other transparent material and sunk into the ground. The top may be solid or slatted or screened for shade. The cold frame is used to start seedlings in early spring (four to six weeks before the average fro...
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compost
compost substance composed mainly of partly decayed organic material that is applied to fertilize the soil and to increase its humus content; it is often used in vegetable farming, home gardens, flower beds, lawns, and greenhouses. Compost usually is made from plant materials (e.g., grass clippin...
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Oregon
Oregon city (1990 pop. 18,334), Lucas co., NW Ohio, a suburb adjacent to Toledo, on Lake Erie; inc. 1958. It is a port with railroad-owned and -operated docks. The city has industries producing oil, chemicals, and metal products. The majority of the city's area is open farmland, where tomatoes, soy...
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Frei Otto
Frei Otto , 1925-, German architect. Most notable for his tensile and pneumatic structures, Otto is among the first major architects to experiment with lightweight design. He is a noted designer of exhibition tents and sports arenas. Otto has also experimented with pneumatic membranes stabilized and...
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fern
fern any plant of the division Polypodiophyta. Fern species, numbering several thousand, are found throughout the world but are especially abundant in tropical rain forests. The ferns and their relatives (e.g., the club moss and horsetail ) are the most primitive plants to have developed a true ...
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