heattrail
nounUK /ˈhiːt.treɪl/
US /ˈhiːt.treɪl/
A heattrail is a warm line of air left behind by something moving fast.
The jet left a glowing heattrail across the evening sky.
OTHER MEANINGS
2. A visible streak of hot air or exhaust behind a fast vehicle or aircraft.
The rocket's heattrail shimmered above the launch pad.
3. A lingering feeling of warmth or excitement left after an event.
A heattrail of cheers stayed with the team long after the game.
4. In games, a glowing path that shows where a fast-moving object has been.
Follow the heattrail to find where the comet landed.