trailingunit
nounUK /ˈtreɪlɪŋ ˈjuːnɪt/
US /ˈtreɪlɪŋ ˈjuːnɪt/
A trailing unit is the last part of a train or group that comes along at the back.
The trailing unit of the train was a small red caboose.
OTHER MEANINGS
2. The final piece of equipment in a connected set.
The trailing unit of the caravan carried the extra supplies.
3. The part that follows behind the main group.
The trailing unit of hikers arrived an hour after the rest.
4. A device or section attached at the end of a machine.
The trailing unit of the plow helps smooth the soil.