1. An artificial cloud created by an aircraft; caused either by condensation due to the reduction in air pressure above the wing surface or by water vapor in the engine exhaust
   - contrail, condensation trail, vapour trail [Brit, Cdn]

Derived forms: vapor trails

Type of: cloud

Encyclopedia: Vapor trail

• sagger
• sagging
• saggy
• Sagina
• Saginaw
• sagitta
• sagittal
• sagittal suture
• Sagittaria
• Sagittariidae
• Sagittarius
• Sagittarius serpentarius
• Sagittarius the Archer
• sagittate
• sagittate-leaf
• sagittiform
• sagittiform leaf
• sago
• sago fern
• sago palm
• saguaro
• Sahaptin
• Sahaptino
• Sahara
• Sahara Desert