rearshield
nounUK /ˈrɪəʃiːld/
US /ˈrɪrʃiːld/
A rearshield is a cover that protects the back of something.
The bike had a rearshield to keep mud off the rider.
OTHER MEANINGS
2. A protective plate at the back of a machine or vehicle.
The tractor's rearshield kept stones from hitting the engine.
3. A defensive barrier placed behind a person or object.
Soldiers set up a rearshield behind the wall.
4. A part of armor that covers the back.
The knight's rearshield was dented in battle.