Dictionary.com Thesaurus.com

Showing results for backwater valve. Search instead for backflow valve.

backwater valve

American

noun

a valve for preventing flowing liquid, as sewage, from reversing its direction.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.