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A silver coin of Portugal, worth about sixpence sterling, or about eleven cents. Homans.

The eleventh month of the French republican calendar, -- commencing July 19, and ending August 17. See the Note under Vendémiaire.

The throttle valve. Throttle lever (Steam Engine), the hand lever by which a throttle valve is moved, especially in a locomotive. -- Throttle valve (Steam Engine), a valve moved by hand or by a governor for regulating the supply of steam to the steam chest. In one form it consists of a disk turning on a transverse axi…

, used by washerwomen to blue linen, and the like. -- Thumb latch, a door latch having a lever formed to be pressed by the thumb. -- Thumb mark. (a) The mark left by the impression of a thumb, as on the leaves of a book. Longfellow. (b) The dark spot over each foot in finely bred black and tan terriers. -- Thumb nut…

ed basin, or a canal, and the tide water of a harbor or river, when they are on different levels, so that craft can pass either way at all times of the tide; - - called also guard lock. -- Tide mill. (a) A mill operated by the tidal currents. (b) A mill for clearing lands from tide water. -- Tide rip, a body of water…

A lever of wood or metal fitted to the rudder head and used for turning side to side in steering. In small boats hand power is used; in large vessels, the tiller is moved by means of mechanical appliances. See Illust. of Rudder. Cf. 2d Helm, 1.

which the forces act. -- Torsion scale, a scale for weighing in which the fulcra of the levers or beams are strained wires or strips acting by torsion.

A door in a level for regulating the ventilating current; -- called also weather door. Raymond. Trapdoor spider (Zoöl.), any one of several species of large spiders which make a nest consisting of a vertical hole in the earth, lined with a hinged lid, like a trapdoor. Most of the species belong to the genus Cteniza, as…

A boy who opens and shuts a trapdoor in a gallery or level. Raymond.

throwing stones, etc. It acted by means of a great weight fastened to the short arm of a lever, which, being let fall, raised the end of the long arm with great velocity, hurling stones with much force.

A piece, as a lever, which is connected with a catch or detent as a means of releasing it; especially (Firearms), the part of a lock which is moved by the finger to release the cock and discharge the piece. Trigger fish (Zoöl.), a large plectognath fish (Balistes Carolinensis or B. capriscus) common on the southern coa…

One of a school of poets who flourished from the eleventh to the thirteenth century, principally in Provence, in the south of France, and also in the north of Italy. They invented, and especially cultivated, a kind of lyrical poetry characterized by intricacy of meter and rhyme, and usually of a romantic, amatory strai…

One of a school of poets who flourished in Northern France from the eleventh to the fourteenth century.

A movable obstruction in a lock, consisting of a lever, latch, wheel, slide, or the like, which must be adjusted to a particular position by a key or other means before the bolt can be thrown in locking or unlocking.

Rising above the level; protuberant. So high as heaved the tumid hills. Milton.

A level passage driven across the measures, or at right angles to veins which it is desired to reach; -- distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel. Tunnel head (Metal.), the top of a smelting furnace where the materials are put in. -- Tunnel kiln, a limekiln in wh…

Next in order after the eleventh; coming after eleven others; -- the ordinal of twelve.

One more that eleven; two and ten; twice six; a dozen. Twelve- men's morris. See the Note under Morris. -- Twelve Tables. (Rom. Antiq.) See under Table.

A figure having eleven angles and eleven sides.

bon, C11H24, of the methane series, found in petroleum; -- so called from its containing eleven carbon atoms in the molecule.