roman brick

noun

often capitalized R

: a building brick having the dimensions of 1¹/₂ in. × 4 in. × 12 in.

Word History

First Known Use

1656, in the meaning defined above

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