fender

noun

1.
a barrier that surrounds the wheels of a vehicle to block splashing water or mud
wing
Derived from:
fend
2.
an inclined metal frame at the front of a locomotive to clear the track
buffer cowcatcher pilot
Derived from:
fend
3.
a low metal guard to confine falling coals to a hearth
Derived from:
fend
4.
a cushion-like device that reduces shock due to an impact
buffer
Derived from:
fend