n. (Zool.) The hypoptilum. [ 1913 Webster ]

adj. 1. having an aftershaft (a small feather at the base of some feathers) [ WordNet 1.5 ]

A passage, usually vertical, for admitting fresh air into a mine or a tunnel. [ 1913 Webster ]

def>An arrow without a barb, for shooting at butts; an arrow. [ Also but shaft. ] Shak. [ 1913 Webster ]

n. a shaft that has cams attached to it, forming part of a mechanical device. [ WordNet 1.5 ]

n. (Mach.) An intermediate shaft; esp., one which receives motion from a line shaft in a factory and transmits it to a machine. [ 1913 Webster ]

n. a rotating shaft that transmits power from the engine to the point of application. [ WordNet 1.5 ]

n. (Mining) The first shaft sunk. Raymond. [ 1913 Webster ]

{ or } n. (Mach.) A secondary shaft, as in a sliding change gear for an automobile; a cam shaft operated by a two-to-one gear in an internal-combustion engine. It is generally a shaft moving more or less independently of the other parts of a machine, as, in some marine engines, a shaft, driven by a small auxiliary engine, for independently operating the valves of the main engine to insure uniform motion. [ Webster 1913 Suppl. ]

n. An arrow. [ Obs. ] [ 1913 Webster ]

[ Cf. Rock, v. i. ] (Mach.) A shaft that oscillates on its journals, instead of revolving, -- usually carrying levers by means of which it receives and communicates reciprocating motion, as in the valve gear of some steam engines; -- called also rocker, rocking shaft, and way shaft. [ 1913 Webster ]

n. [ OE. shaft, schaft, AS. sceaft; akin to D. schacht, OHG. scaft, G. schaft, Dan. & Sw. skaft handle, haft, Icel. skapt, and probably to L. scapus, Gr. &unr_;&unr_;&unr_;&unr_;, &unr_;&unr_;&unr_;&unr_;, a staff. Probably originally, a shaven or smoothed rod. Cf. Scape, Scepter, Shave. ] 1. The slender, smooth stem of an arrow; hence, an arrow. [ 1913 Webster ]

His sleep, his meat, his drink, is him bereft,
That lean he wax, and dry as is a shaft. Chaucer. [ 1913 Webster ]

A shaft hath three principal parts, the stele [ stale ], the feathers, and the head. Ascham. [ 1913 Webster ]

2. The long handle of a spear or similar weapon; hence, the weapon itself; (Fig.) anything regarded as a shaft to be thrown or darted; as, shafts of light. [ 1913 Webster ]

And the thunder,
Winged with red lightning and impetuous rage,
Perhaps hath spent his shafts. Milton. [ 1913 Webster ]

Some kinds of literary pursuits . . . have been attacked with all the shafts of ridicule. V. Knox. [ 1913 Webster ]

3. That which resembles in some degree the stem or handle of an arrow or a spear; a long, slender part, especially when cylindrical. Specifically: (a) (Bot.) The trunk, stem, or stalk of a plant. (b) (Zool.) The stem or midrib of a feather. See Illust. of Feather. (c) The pole, or tongue, of a vehicle; also, a thill. (d) The part of a candlestick which supports its branches. [ 1913 Webster ]

Thou shalt make a candlestick of pure gold . . . his shaft, and his branches, his bowls, his knops, and his flowers, shall be of the same. Ex. xxv. 31. [ 1913 Webster ]

(e) The handle or helve of certain tools, instruments, etc., as a hammer, a whip, etc. (f) A pole, especially a Maypole. [ Obs. ] Stow. (g) (Arch.) The body of a column; the cylindrical pillar between the capital and base (see Illust. of Column). Also, the part of a chimney above the roof. Also, the spire of a steeple. [ Obs. or R. ] Gwilt. (h) A column, an obelisk, or other spire-shaped or columnar monument. [ 1913 Webster ]

Bid time and nature gently spare
The shaft we raise to thee. Emerson. [ 1913 Webster ]

(i) (Weaving) A rod at the end of a heddle. (j) (Mach.) A solid or hollow cylinder or bar, having one or more journals on which it rests and revolves, and intended to carry one or more wheels or other revolving parts and to transmit power or motion; as, the shaft of a steam engine. See Illust. of Countershaft. [ 1913 Webster ]

4. (Zool.) A humming bird (Thaumastura cora) having two of the tail feathers next to the middle ones very long in the male; -- called also cora humming bird. [ 1913 Webster ]

5. [ Cf. G. schacht. ] (Mining) A well-like excavation in the earth, perpendicular or nearly so, made for reaching and raising ore, for raising water, etc. [ 1913 Webster ]

6. A long passage for the admission or outlet of air; an air shaft. [ 1913 Webster ]

7. The chamber of a blast furnace. [ 1913 Webster ]

Line shaft (Mach.), a main shaft of considerable length, in a shop or factory, usually bearing a number of pulleys by which machines are driven, commonly by means of countershafts; -- called also line, or main line. --
Shaft alley (Naut.), a passage extending from the engine room to the stern, and containing the propeller shaft. --
Shaft furnace (Metal.), a furnace, in the form of a chimney, which is charged at the top and tapped at the bottom. [ 1913 Webster ]

a. 1. Furnished with a shaft, or with shafts; as, a shafted arch. [ 1913 Webster ]

2. (Her.) Having a shaft; -- applied to a spear when the head and the shaft are of different tinctures. [ 1913 Webster ]

n. (Mach.) Shafts, collectivelly; a system of connected shafts for communicating motion. [ 1913 Webster ]

{ } n. [ AS. sceaftmund. ] A measure of about six inches. [ Obs. ] [ 1913 Webster ]

1. (Mach.) A rock shaft. [ 1913 Webster ]

2. (Mining) An interior shaft, usually one connecting two levels. Raymond. [ 1913 Webster ]