returnpath
nounUK /rɪˈtɜːn pɑːθ/
US /rɪˈtɝːn pæθ/
The way back to where something came from.
The lost dog found its returnpath home by following the familiar smell.
OTHER MEANINGS
2. In computing, the address or route a message uses to travel back to its sender.
The email server checked the returnpath to see where the bounced message should go.
3. In science, the path a signal or particle takes when it comes back to its starting point.
The echo's returnpath showed how sound bounces off the canyon walls.
4. A way for someone to get back to a place or situation they left.
After the storm, the villagers cleared a returnpath to the main road.