flapper valve

Fetched 2026-10-26 (cache).

Synonyms: clapper valve, flapper valves

Antonyms: clapper valve, flapper valves

Related words from Datamuse; suggestions, not definitions.

Noun

1. A kind of valve used in [[toilet]]s, [[water softener]]s, etc. to create a [[watertight]] [[seal]] in the [[tank]] that holds water until it needs to be [[flush]]ed, at which point the valve is raised.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.