taper pin

noun

: a tapered rod of metal or hardwood used as a dowel to locate one part with reference to another or to secure two parts together by driving into a tapered hole passing through both parts

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now