well car

noun

: a railroad flatcar having a depression or opening in the center of the deck for handling oversize loads that would not on regular flat cars come within overhead clearance limitations

called also well-hole car

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