Wiktionary
n. (plural of motorbus English)
Usage examples of "motorbuses".
Tramcars and motorbuses were packed unwholesomely with these children of shadowland drawn together from the seven seas by the magnet of London.
There were a number of motorbuses and lorries, an omnibus and motorized cabs, and horse trams with gaudy advertising posters on their sides, but for the most part it was a crowding melee of horses and high wheels—delivery vans drawn by hairy-footed nags, open Victoria carriages, the closed broughams favored by doctors, and high-topped hansom cabs.
Now, the problem is that the pumps you're wearing just aren't suited to running across traffic, jumping on the backs of passing motorbuses, that sort of thing.
There were more and more motorcars and motorbuses on the London streets, however, and the drivers seemed to Maya to be more than reckless when it came to taking a reasonable pace in bad weather.