Noun: contrail 'kón,treyl
- 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 vapour in the engine exhaust
"The sky was crisscrossed with contrails from passing jets"; "The jet left a long contrail across the sky";
- condensation trail, vapor trail [US], vapour trail [Brit, Cdn]
Derived forms: contrails
Type of: cloud
Encyclopedia: Contrail