1. A metal ring or cap fitted around the end of a stick, pole, or tube to strengthen it or prevent splitting.
2. A metal or plastic sleeve used to connect or join two pieces of pipe or tubing.
Usage: technical

Examples

• The ferrules on the umbrella handle kept it from splintering.
• Metal ferrules reinforce the ends of the wooden crutches.
• The plumber used ferrules to join the copper pipes together.
• The fishing rod's ferrules allow the sections to fit snugly.
• Brass ferrules are commonly used in construction and manufacturing.
• She replaced the worn ferrules on her walking stick.