vapour trail BrE
vapor trail AmE

A high plane left a figure eight of white vapor trail across the sky.

The actual question is sometimes lost in the vapour trail.

It seemed to hang like a vapor trail long after its source was gone.

There's a good chance they won't spot the vapour trail if they're not looking for it.

His voice was like a vapor trail in the night sky; her hands opened, trying to catch it.

The vapour trail, at that hour of the morning in those air conditions, had become visible very late.

This time of day, it's not too hard to see a missile's vapour trail.

The moist air condensed behind them and left a vapor trail in front of their sound.

A fist flashed into his palm so quickly I only saw the vapor trail.

The object changed course slightly, and the vapor trail twisted around like some sort of cable.