well point

noun

: a hollow pointed rod with a perforated intake driven into an excavation to lower the water table by pumping and thus minimize flooding during construction

Word History

First Known Use

1867, 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