1. plural of millhouse; buildings or structures that house mills or milling equipment, typically for grinding grain or processing other materials
Usage: chiefly historical or regional; often refers to buildings associated with water mills or industrial mills

Examples

• The old millhouses along the river were converted into apartments.
• Several historic millhouses in the valley date back to the 18th century.
• The town preserved its millhouses as part of the industrial heritage project.
• Workers lived near the millhouses during the peak milling season.