🇬🇧 en pt 🇵🇹

safety valve noun

  /ˈseɪfti ˌvælv/ , /ˈseɪftɪ ˌvælv/
  • A valve set to open at a pressure below that at which a container holding a gas, vapour, etc. (such as a boiler or pressure cooker), would burst, thus reducing the pressure; a relief valve.
 válvula de escape, válvula de alívio de pressão, válvula de segurança
  • (figuratively) Any mechanism offering relief from physical or emotional pressure or tension.
 válvula de escape
Wiktionary Links