from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bolt shaped like the letter U, fitted with threads and a nut at each end.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A metal fixing in the shape of the letter U, which has a pin or screw bolt closure which fits across the two ends making a closed clamp
from The Century Dictionary and Cyclopedia
- n. A bar of iron bent into the form of the letter U, fitted with a screw and nut at each end. It is used in car-building to form carriers and supports for brake-rods, chains, and other connections.
Sorry, no etymologies found.