flapper valve

noun

A kind of valve used in toilets, water softeners, etc. to create a watertight seal in the tank that holds water until it needs to be flushed, at which point the valve is raised.

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Meanings

nounflapper valve (plural flapper valves)

plural flapper valves

  1. A kind of valve used in toilets, water softeners, etc. to create a watertight seal in the tank that holds water until it needs to be flushed, at which point the valve is raised.
Cite this entry
APA

flapper valve. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/flapper%20valve

MLA

“flapper valve.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/flapper%20valve. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “flapper valve,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/flapper%20valve.

Source: flapper valve on Wiktionary, CC BY-SA 4.0.