Dictionary > Shaft

Shaft

shaft
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. (Chaucer) 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; anything regarded as a shaft to be thrown or darted; as, shafts of light. And the thunder, winged with red lightning and impetuous rage, perhaps hath spent his shafts. (milton) 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.
(Science: botany) Specifically: (a) The stem or midrib of a feather. The pole, or tongue, of a vehicle; also, a thill.
The part of a candlestick which supports its branches. 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)
The handle or helve of certain tools, instruments, etc, as a hammer, a whip, etc.
A pole, especially a Maypole.
The body of a column; the cylindrical pillar between the capital and base. Also, the
f46
part of a chimney above the roof. Also, the spire of a steeple.
A column, an obelisk, or other spire-shaped or columnar monument. ”Bid time and nature gently spare The shaft we raise to thee.
(Science: machinery) ” (Emerson) 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.
4. (Science: zoology) 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.
5. Cf. G. Schacht.
(Science: chemical) A well-like excavation in the earth, perpendicular or nearly so, made for reaching and raising ore, for raising water, etc.
6. A long passage for the admission or outlet of air; an air shaft.
7. The chamber of a blast furnace. Line shaft, a furnace, in the form of a chimney, which is charged at the top and tapped at the bottom.
Origin: 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, a staff. Probably originally, a shaven or smoothed rod. Cf. Scape, Scepter, Shave.


You will also like...

Biosecurity and Biocontrol
Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

Homeostasis by water regulation
Homeostasis of Organism Water Regulation

Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

Cell Biology
Cell Biology

The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

Crossing Over and Genetic Diversity
Inheritance and Probability

Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

Genetics and Evolution
Genetics and Evolution

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

Ploidy
Polyploidy

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

Related Articles...

No related articles found

See all Related Topics