large powerful tractor; a large blade in front flattens areas of ground

A heavy piece of equipment used to construct a fire line by clearing vegetation.

Any tracked vehicle with a front-mounted blade used for exposing mineral soil.

Bulldozer operator.

Slang for the piece of heavy construction equipment, called a bulldozer. The machine consists of tractor-like machinery, which moves on treads and has an adjustable, front-mounted scraper blade which moves the dirt by pushing it in front of the machine and is used to smooth and level a building site.