a visible trail left by an aircraft flying at high altitude or through supercold air, caused by the deposition of water vapour in the engine exhaust as minute ice crystalsAlso called: condensation trail, contrail
happy trailRead more in this article about some frequently asked questions and fun facts related to our definitions.
Trail of TearsRead more in this article about some frequently asked questions and fun facts related to our definitions.
- vapour density,
- vapour lock,
- vapour pressure,
- vapourer moth,
- vaquez disease,
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012