bowstring beam

noun

variants or bowstring girder or bowstring truss

: a beam or girder consisting of an arched beam strengthened by a tie connecting its two ends

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