(of vapour)
21vapour — 1. noun /ˈveɪpə/ a) The gas phase component of a liquid or solid. b) The gaseous state of a substance that is normally a solid or liquid. 2. verb /ˈveɪpə/ a) To become vapour; to be emitted or circu …
22vapour trail — UK / US noun [countable] Word forms vapour trail : singular vapour trail plural vapour trails the long white line seen in the sky behind a plane …
23vapour density — noun the density of a gas relative to the density of hydrogen • Syn: ↑vapor density • Hypernyms: ↑relative density * * * vapour density noun The density of a gas or vapour relative to that of hydrogen at the same temperature and pressure • • •… …
24vapour lock — noun a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal combustion engine when fuel in the gas line boils and forms bubbles that block the flow of gasoline to the carburetor) • Syn:… …
25vapour pressure — noun the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form) • Syn: ↑vapor pressure • Hypernyms: ↑pressure, ↑pressure level, ↑force per unit area * * *… …
26Vapour Lock Index — Der Vapour Lock Index (VLI, deutsch: Flüchtigkeitskennziffer) ist eine aus DVPE und E70 berechnete Maßzahl für die Qualität von Motorenbenzin. Dabei ist das Dry Vapour Pressure Equivalent (DVPE) der Dampfdruck in kPa von Benzin bzw.… …
27vapour trail — ▪ aerology also called Condensation Trail, or Contrail, streamer of cloud sometimes observed behind an airplane flying in clear, cold, humid air. It forms upon condensation of the water vapour produced by the combustion of fuel in the… …
28vapour trail — n. to leave a vapour trail (high flying aircraft leave vapour trails) …
29vapour — [[t]ve͟ɪpə(r)[/t]] vapours N VAR Vapour consists of tiny drops of water or other liquids in the air, which appear as mist. ...water vapour. (in AM, use vapor) …
30vapour — UK [ˈveɪpə(r)] / US [ˈveɪpər] noun [countable/uncountable] Word forms vapour : singular vapour plural vapours science very small drops of water or other liquids in the air that make the air feel wet • the vapours Derived word: vaporous adjective …
