Loam

Part of speech: noun (n.)

1. A kind of soil; an earthy mixture of clay and sand, with organic matter to which its fertility is chiefly due. We wash a wall of loam; we labor in vain. Hooker.

2. A mixture of sand, clay, and other materials, used in making molds for large castings, often without a pattern. Loam mold (Founding), a mold made with loam. See Loam, n., 2. -- Loam molding, the process or business of making loam molds. Loam plate, an iron plate upon which a section of a loam mold rests, or from which it is suspended. -- Loam work, loam molding or loam molds.

Part of speech: verb (v.)

To cover, smear, or fill with loam.