rice mill noun2 •A rice huller, a device for removing the outer husks of raw grains of rice.They are put to in turning of Corne-Mills, Paper-Mills, Gins, Powder-Mills, Rice-Mills,... and such other Machines. — 1661 •A building housing and powering such a device.Rice mills, called pecker, cog, and water mills... — 1802 formsrice mills · rice-mills