Shaft /(?)/

Shaft

n.
  1. The slender, smooth stem of an arrow; hence, an arrow.
    His sleep, his meat, his drink, is him bereft, That lean he wax, and dry as is a shaft.
    A shaft hath three principal parts, the stele [stale], the feathers, and the head.
    — Ascham.
  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. [Fig.]
    And the thunder, Winged with red lightning and impetuous rage, Perhaps hath spent his shafts.
    Some kinds of literary pursuits . . . have been attacked with all the shafts of ridicule.
    — V. Knox.
  3. That which resembles in some degree the stem or handle of an arrow or a spear; a long, slender part, especially when cylindrical. (Bot.)
    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.
  4. The handle or helve of certain tools, instruments, etc., as a hammer, a whip, etc. (Arch.) [Obs.]
    Bid time and nature gently spare The shaft we raise to thee.
  5. A rod at the end of a heddle. (Weaving)
  6. 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. (Zool.)
  7. A well-like excavation in the earth, perpendicular or nearly so, made for reaching and raising ore, for raising water, etc. (Mining)
  8. A long passage for the admission or outlet of air; an air shaft.
  9. The chamber of a blast furnace.

Phrases & Compounds

Line shaft
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
a passage extending from the engine room to the stern, and containing the propeller shaft.
Shaft furnace
a furnace, in the form of a chimney, which is charged at the top and tapped at the bottom.