working ball

noun

: a bowling ball having sufficient spin to scatter the pins upon impact

Word History

Etymology

working (present participle of work entry 3) + ball

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