0 a vehicle for transporting horses, sometimes pulled by another vehicle --
The coupling between the horsebox and the following carriages failed, and they ran off the rails and down the embankment on the outside of the curve.
A horsebox coupled behind the engine was derailed but remained upright.
In 1850, an excursion train collided with a horsebox that had escaped from a siding at the station.
The park is often used by horse riders as a starting / finishing point for beach rides with room to park a horsebox or trailer.
The allegation that the driver of the horsebox was under the influence of drink was disproved by the fact that he was subjected to a breath test that proved negative.
I have seen horsebox drivers and stable staff—many of whom are young or very old—queueing for buckets of water to wash down animals after they have raced.
I should perhaps declare an interest having worked in the industry as an assistant trainer, an assistant clerk of the course, a horsebox driver and a permit holder.
The police officer who attended at the locus spoke to the driver of the horsebox and confirmed that he was trapped by the legs.