bull wheel

noun Machinery.

any large driving gear among smaller gears.
Also called bull gear.

Origin of bull wheel

An Americanism dating back to 1820–30

Words nearby bull wheel

bull stretcher, bull terrier, bull thistle, bull tongue, bull trout, bull wheel, bull's nose, bull's wool, bull's-eye, bull's-eye mirror, bull's-eye rot

Definition for bull gear (2 of 2)

bull gear

noun Machinery.

bull wheel.