Dictionary.com

Popular Searches

 Thesaurus.com

backwater valve

American  

noun

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For those in flood-prone neighborhoods, protect your home with a backwater valve.

From Washington Post

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.