chain pump

noun

: a pump consisting of a sprocket-operated endless chain fitted at close intervals with disks that lift the water by moving rapidly through a pipe in the direction of the desired flow

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