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A vortex tube of infinitesimal cross section.

Anything protuberant and swagging. "Wallets of flesh." Shak.

The edible tuber of a species of arrowhead (Sagittaria variabilis); -- so called by the Indians of Oregon. [Written also wappato.]

An excrescence or protuberance more or less resembling a true wart; specifically (Bot.), a glandular excrescence or hardened protuberance on plants. Fig wart, Moist wart (Med.), a soft, bright red, pointed or tufted tumor found about the genitals, often massed into groups of large size. It is a variety of condyloma. Ca…

an wild hogs of the genus Phacochoerus. These animals have a pair of large, rough, fleshy tubercles behind the tusks and second pair behind the eyes. The tusks are large and strong, and both pairs curve upward. The body is scantily covered with bristles, but there is long dorsal mane. The South African species (Phacoch…

Washing bear (Zoöl.), the raccoon. -- Washing bottle (Chem.), a bottle fitted with glass tubes passing through the cork, so that on blowing into one of the tubes a stream of water issuing from the other may be directed upon anything to be washed or rinsed, as a precipitate upon a filter, etc. -- Washing fluid, a liqu…

A chamber surrounding a vessel or tube in which water may be circulated, thereby regulating the temperature or supply of heat to the vessel. Used in laboratory and manufacturing equipment. water- jacketed. Having a water jacket; -- as, a water-jacketed condenser.

A pore by which the water tubes of various invertebrates open externally.

illum, or Brechites. The valves are small, and consolidated with the capacious calcareous tube which incases the entire animal. The tube is closed at the anterior end by a convex disk perforated by numerous pores, or tubules, and resembling the rose of a watering pot. -- Watering trough, a trough from which cattle, ho…

. In some of the species the nest is retort-shaped, with the opening at the bottom of the tube. -- Weavers' shuttle (Zoöl.), an East Indian marine univalve shell (Radius volva); -- so called from its shape. See Illust. of Shuttle shell, under Shuttle.

Expanding into a flat, circular border at top, with scarcely any tube; as, a wheel-shaped corolla.

Having whelks, ridges, or protuberances; hence, streaked; striated.

A perforated steel die through which wires or tubes are drawn to form them.

Tuberculosis, esp. of the lungs.

A bundle of fibers, or a loosely twisted or braided cord, tape, or tube, usually made of soft spun cotton threads, which by capillary attraction draws up a steady supply of the oil in lamps, the melted tallow or wax in candles, or other material used for illumination, in small successive portions, to be burned. But tru…

A gun in the construction of which an inner tube (either entire or in segments) is wound with wire under tension to insure greater soundness and uniformity of resistance. In modern construction hoops and jackets are shrunk on over the wire.

ades." Spenser. Woody fiber. (Bot.) (a) Fiber or tissue consisting of slender, membranous tubes tapering at each end. (b) A single wood cell. See under Wood. Goodale. -- Woody nightshade. (Bot.). See Bittersweet, 3 (a). -- Woody pear (Bot.), the inedible, woody, pear-shaped fruit of several Australian proteaceous tre…

The condensing tube of a still, often curved and wound to economize space. See Illust. of Still.

A large, esculent, farinaceous tuber of various climbing plants of the genus Dioscorea; also, the plants themselves. Mostly natives of warm climates. The plants have netted-veined, petioled leaves, and pods with three broad wings. The commonest species is D. sativa, but several others are cultivated. Chinese yam, a pla…

One of the cells or tubes which inclose the feeling zooids of Bryozoa. See Illust. of Sea Moss.