1. A building or facility where grain (usually barley) is converted into malt through soaking, germination, and drying processes
   "The old malthouse has been converted into apartments"
    
2. A company or business that produces malt for brewing, distilling, or food production
   "The local brewery sources its malt from a nearby malthouse"
    
3. (historical, architecture) a building designed for malting, often characterized by its long, low structure with ventilation features
   "The 19th-century malthouse is now a protected heritage site"

Derived forms: malthouses

Encyclopedia: Malthouse, William