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A genus of long, slender, wormlike bivalve mollusks which bore into submerged wood, such as the piles of wharves, bottoms of ships, etc.; -- called also shipworm. See Shipworm. See Illust. in App.

An auger or borer. [Obs.]

To bore; to drill or thrill. See Thrill. [Obs. or Prov.] That with a spear was thirled his breast bone. Chaucer.

To perforate by a pointed instrument; to bore; to transfix; to drill. [Obs.] He pierced through his chafed chest With thrilling point of deadly iron brand. Spenser.

limit of, to the opposite; into and out of at the opposite, or at another, point; as, to bore through a piece of timber, or through a board; a ball passes through the side of a ship.

stone. Thunderbolt beetle (Zoöl.), a long-horned beetle (Arhopalus fulminans) whose larva bores in the trunk of oak and chestnut trees. It is brownish and bluish-black, with W-shaped whitish or silvery markings on the elytra.

filled at the rising of the tide. -- Tidal wave. (a) See Tide wave, under Tide. Cf. 4th Bore. (b) A vast, swift wave caused by an earthquake or some extraordinary combination of natural causes. It rises far above high-water mark and is often very destructive upon low-lying coasts.

oom. -- Timber beetle (Zoöl.), any one of numerous species of beetles the larvæ of which bore in timber; as, the silky timber beetle (Lymexylon sericeum). -- Timber doodle (Zoöl.), the American woodcock. [Local, U.S.] -- Timber grouse (Zoöl.), any species of grouse that inhabits woods, as the ruffed grouse and spruce…

manual arts, to facilitate mechanical operations; any instrument used by a craftsman or laborer at his work; an implement; as, the tools of a joiner, smith, shoe-maker, etc.; also, a cutter, chisel, or other part of an instrument or machine that dresses work.

An explosive cartridge or shell lowered or dropped into a bored oil well, and there exploded, to clear the well of obstructions or to open communication with a source of supply of oil.

To bore through; to perforate. [Obs.]

The zone lying between the Boreal and Sonoran zones of North America. It includes an eastern or humid subdivision and a western arid one of corresponding temperature comprising the northern Great Plains and the lower slopes of the mountains of the western United States and Mexico. Called also Neutral zone.…

A mass of crystals, aggregated in arborescent forms, obtained by precipitation of a metal from solution. See Lead tree, under Lead. Tree bear (Zoöl.), the raccoon. [Local, U.S.] -- Tree beetle (Zoöl.) any one of numerous species of beetles which feed on the leaves of trees and shrubs, as the May beetles, the rose beetl…

hymenopterous insects allied to the sawflies. The female lays her eggs in holes which she bores in the trunks of trees with her large and long ovipositor, and the larva bores in the wood. See Illust. of Horntail.

atic sweetmeat for sweetening the breath. T. R. Lounsbury. Under his tongue a truelove he bore. Chaucer. Truelove knot, a complicated, involved knot that does not readily untie; the emblem of interwoven affection or engagement; -- called also true-lover's knot.

oman's dress; a stomacher. [Obs.] Nares. Puts off his palmer's weed unto his truss, which bore The stains of ancient arms. Drayton.

One of the siphons of a bivalve mollusk. Capillary tube, a tube of very fine bore. See Capillary. -- Fire tube (Steam Boilers), a tube which forms a flue. -- Tube coral. (Zoöl.) Same as Tubipore. -- Tube foot (Zoöl.), one of the ambulacral suckers of an echinoderm. -- Tube plate, or Tube sheet (Steam Boilers), a fl…

Asiatic insectivores of the family Tupaiidæ, somewhat resembling squirrels in size and arboreal habits. The nose is long and pointed.

s had boats made of willow twigs, covered on the outside with hides. Sir T. Raleigh. Twig borer (Zoöl.), any one of several species of small beetles which bore into twigs of shrubs and trees, as the apple-tree twig borer (Amphicerus bicaudatus). -- Twig girdler. (Zoöl.) See Girdler, 3. -- Twig rush (Bot.), any rushli…

Twin crystal. See Twin, n., 4. -- Twin flower (Bot.), a delicate evergreen plant (Linnæa borealis) of northern climates, which has pretty, fragrant, pendulous flowers borne in pairs on a slender stalk. -- Twin-screw steamer, a steam vessel propelled by two screws, one on either side of the plane of the keel.…