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bark, in botany

(Encyclopedia) bark, outer covering of the stem of woody plants, composed of waterproof cork cells protecting a layer of food-conducting tissue—the phloem or inner bark (also called bast). As the…

Basket Makers

(Encyclopedia) Basket Makers, name given to the members of an early Native North American culture in the Southwest, predecessors of the Pueblo. Because of the cultural continuity from the Basket…

rainproof fabric

(Encyclopedia) rainproof fabric: see waterproof and water-repellent fabrics.

cork, in botany

(Encyclopedia) cork, protective, waterproof outer covering of the stems and roots of woody plants. Cork is a specialized secondary tissue produced by the cork cambium of the plant (see meristem, bark…

pressure-treated wood

(Encyclopedia) pressure-treated wood, wood that has had a liquid preservative forced into it in order to protect against deterioration due to rot or insect attack. The most commonly used…

vase

(Encyclopedia) vase, vessel of pottery, glass, metal, stone, wood, or synthetic material. The pottery vase was anciently employed as a container for water (a hydria), wine and other products (an…

terrarium

(Encyclopedia) terrarium, a miniature garden in an artificial environment, in which small plants and animals may be kept as ornament or for educational purposes. Fish bowls, small fish tanks, large…

leaf

(Encyclopedia) CE5 Microscopic cross section of the leaf blade CE5 Types of leaves leaf, chief food-manufacturing organ of a plant, a lateral outgrowth of the growing point of stem. The…

Macintosh, Charles

(Encyclopedia) Macintosh, CharlesMacintosh, Charlesmăkˈəntŏshˌ [key], 1766–1843, Scottish chemist and inventor. In 1823 he developed a waterproof fabric used to make raincoats that were named for him…

capillarity

(Encyclopedia) CE5 Capillarity: Water wets the walls of a capillary tube and thus rises, causing the upper surface, or meniscus, of the liquid to be concave; mercury does not wet the walls of a…