diamond truer

noun

: a grinding wheel truer consisting usually of a short steel rod inserted in a wooden handle and having in its free end a carbon diamond : diamond dresser

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