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d of which butter is sometimes made. [Written also thrutchthings.] [Prov. Eng.] Thrusting screw, the screw of a screw press, as for pressing curd in making cheese. [R.]

ark spot over each foot in finely bred black and tan terriers. -- Thumb nut, a nut for a screw, having wings to grasp between the thumb and fingers in turning it; also, a nut with a knurled rim for the same perpose. -- Thumb ring, a ring worn on the thumb. Shak. -- Thumb stall. (a) A kind of thimble or ferrule of ir…

An instrument of torture for compressing the thumb; a thumbscrew.

t consists of two thin slips of steel welded together, their length being adjystable by a screw socket.

tially of a pad or compress upon which pressure is made by a band which is tightened by a screw or other means.

leeward. G. Francis. -- Turn of life (Med.), change of life. See under Change. -- Turn screw, a screw driver.

A loop or sleeve with a screw thread at one end and a swivel at the other, -- used for tightening a rod, stay, etc.

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.

Kentucky. Other plants in various countries are called by this name, especially a kind of screw pine (Pandanus odoratissimus).

similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc.

An instrument consisting of two jaws, closing by a screw, lever, cam, or the like, for holding work, as in filing. [Written also vice.]

ous purposes, as for stopping an aperture, padding a garment, etc. Wed hook, a rod with a screw or hook at the end, used for removing the wad from a gun.

The backward current or disturbed water caused by the action of oars, or of a steamer's screw or paddles, etc.

or other material, or a perforated plate, used for various purposes, as around a bolt or screw to form a seat for the head or nut, or around a wagon axle to prevent endwise motion of the hub of the wheel and relieve friction, or in a joint to form a packing, etc.

The Archimedean screw. [R.]

A vertical passage in the stern into which an auxiliary screw propeller may be drawn up out of water.

.), a name given to several labiate plants of the genus Teucrium. See Germander. -- Wood screw, a metal screw formed with a sharp thread, and usually with a slotted head, for insertion in wood. -- Wood sheldrake (Zoöl.), the hooded merganser. -- Wood shock (Zoöl.), the fisher. See Fisher, 2. -- Wood shrike (Zoöl.),…

The thread of a screw. The threads of screws, when bigger than can be made in screw plates, are called worms. Moxon.

t the end or between the ends, for exerting a twisting strain, as in turning bolts, nuts, screw taps, etc.; a screw key. Many wrenches have adjustable jaws for grasping nuts, etc., of different sizes.