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water seal

British  

noun

  1. a small amount of water contained in the trap of a drain to prevent the passage of foul smells

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

Their multi-scale suction mechanism is an organic combination of mechanical conformation and regulated water seal.

From Science Daily • Apr. 18, 2024

Before you turn the water on or flush a toilet, the drain pipes, beyond the water seal in your P-traps, are filled with air.

From Seattle Times • Feb. 13, 2023

When it’s time to eat, they pour in the boiling water, seal the bag, then tuck it into a coat or a beanie to keep things hot.

From New York Times • Jun. 26, 2017

This fermentation jar from Bay Area ceramist Sarah Kersten is lined with a food-safe glaze and has a "water seal," which eliminates evaporation and odors.

From Los Angeles Times • Nov. 27, 2015

Fill the jars full with fresh water, seal again and the fruit is ready for winter's use.

From Vaughan's Vegetable Cook Book (4th edition) How to Cook and Use Rarer Vegetables and Herbs by Anonymous

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