- any mill that pulverizes, flattens, or otherwise changes material, as grain, by passing it between rolls.
Origin of roller mill
An Americanism dating back to 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for roller mill
Instead of grinding grain for feeding, we have what is known as a crusher which operates on the roller-mill principle.Farm Mechanics
Herbert A. Shearer