Dictionary > Knuckle

Knuckle

Knuckle
1. The joint of a finger, particularly when made prominent by the closing of the fingers.
2. The kneejoint, or middle joint, of either leg of a quadruped, especially of a calf; formerly used of the kneejoint of a human being. With weary knuckles on thy brim she kneeled sadly down. (Golding)
3. The joint of a plant.
4. (Science: mechanics) The joining pars of a hinge through which the pin or rivet passes; a knuckle joint.
5. A convex portion of a vessels figure where a sudden change of shape occurs, as in a canal boat, where a nearly vertical side joins a nearly flat bottom.
6. A contrivance, usually of brass or iron, and furnished with points, worn to protect the hand, to add force to a blow, and to disfigure the person struck; as, brass knuckles; called also knuckle duster. Knuckle joint, the lower part of a leg of veal, from the line of the body to the knuckle.
Origin: oe. Knokel, knokil, as. Cuncel; akin to D. Knokkel, OFries. Knokele, knokle, g. Knochel, Sw. Knoge, dan. Knokkel, g. Knochen bone, and perh. To E. Knock.


You will also like...

human respiratory system
Respiration

The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

Still freshwater and plants
Still Freshwater & Plants

Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

Gene Regulation in Eukaryotes
Gene Regulation in Eukaryotes

Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....

Darwin's Finches - Natural Selection
Darwin and Natural Selection

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

Fossil trilobite imprint in the sediment
Insects

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

Ecological Research Measuring & Analysis
Ecological Research: Measuring & Analysis

This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

Related Articles...

No related articles found

See all Related Topics