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Possible definitions for weldor
eelworm
Any of several species of nematode, named for their resemblance to miniature eels. Eelworms are either free-living or parasitic, and most are about 0.005-0.05 in. (0.1-1.5 mm) long. They are found in all parts of the world. Free-living forms inhabit salt water, freshwater, and damp soil. Parasitic forms are found in the roots of many plant species; the potato-root eelworm, for example, is a serious pest of potatoes. Some species occur in both plants and animals.
elder
Any of about 20-30 species, mainly shrubs and small trees, that make up the genus Sambucus, in the honeysuckle family. Most are native to forested temperate or subtropical areas. Elders are important as garden shrubs, as forest plants, and for their berries (elderberries), which provide food for wildlife and are used for wines, jellies, pies, and folk medicines. Elders have divided leaves and flat, roundish clusters of tiny, yellowish-white, saucer-shaped flowers. The Amer., or sweet, elder (S. canadensis) of N. America is the most important species horticulturally.
welding
Technique for joining metallic parts, usually through the application of heat. Discovered in the 1st millennium AD during attempts to manipulate iron into useful shapes, the technique produced a strong, tough blade. Welding traditionally involved interlayering relatively soft and tough iron with high-carbon material, followed by hammer forging. Modern welding processes include gas welding, arc welding, and resistance welding. More recently, electron-beam welding, laser welding, and several solid-phase processes such as diffusion bonding, friction welding, and ultrasonic joining have been developed. See also brazing, soldering.
welfare
Any of a variety of governmental programs that provide assistance to those in need. Programs include pensions, disability and unemployment insurance, family allowances, survivor benefits, and national health insurance. The earliest modern welfare laws were enacted in Germany in the 1880s (see social insurance), and by the 1920s and '30s most Western nations had adopted similar programs. Most industrialized countries require firms to insure workers for disability (see workers' compensation), so that they have income if they are injured, whether temporarily or permanently. For disability from illness unrelated to occupational injury, most industrial nations pay a short-term benefit followed by a long-term pension. Many countries pay a family allowance to reduce the poverty of large families or to increase the birthrate. Survivor benefits, provided for widows below pension age left with a dependent child, vary considerably among nations and generally cease if the woman remarries. Of the wealthier nations, only the U.S. fails to provide national health insurance other than for the aged and the poor (see Medicare and Medicaid).
Wenders
German film director. He directed short films from ...
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