packing room noun2 •A room that a business uses to pack items for subsequent storage or shipping.If the probable highest dew point can be estimated, the corresponding relative humidity in the packing room at any desired temperature may be determined from a humidity chart. — 1944 •A room in a large house that is used for storing unused items; storage room.Above the dining room were two bedrooms; above the pantry, a packing room; and above the kitchen and laundry, two servants' rooms. — 1963 formspacking rooms