Meanings
nounrelief valve (plural relief valves)
plural relief valves
- Synonym of safety valve.
Synonyms: safety valve
Synonyms & antonyms
nounSynonym of safety valve.
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More synonyms by meaning
nouna valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
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Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
relief valve. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/relief%20valve
MLA
“relief valve.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/relief%20valve. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “relief valve,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/relief%20valve.
Source: relief valve on Wiktionary, CC BY-SA 4.0.