Contrail (noun)

A visible stream of condensation created by an aircraft in the sky, often seen behind high-flying jet airplanes.

Origin:

Derived from the prefix 'con-' (meaning 'together with') and the noun 'trail'.

Examples:

1. The airplane left a long contrail in the sky.
2. Contrails can be seen from a distance and are a common sight in the sky.
3. The contrail provided evidence of the aircraft's flight path.
4. Contrails are a result of the combination of hot exhaust and low ambient temperature.
5. The contrail left by the airplane was particularly long and pronounced.