Definition of "snowplough"

A "J36" 0-6-0 with the normal snowplough had to give up at Lumphanan and returned home, whereupon a Stanier Class "5" with a large snowplough and two coaches of workmen with shovels, went up and eventually drove a path through to Ballater.

1960 March, “The January blizzard in the North-East of Scotland”, in Trains Illustrated, page 139

In another initiative, NR [Network Rail] is to fund snowploughs for fitting to NYMR's [North Yorkshire Moors Railway's] Class 25 diesel loco, facilitating the clearance of snow from the line as far west as Battersby under a track access agreement.

2019 October, James Abbott, “Esk Valley revival”, in Modern Railways, page 78