loam /ˈlom, ||ˈlum, ||ˈlʊm/
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. Founding 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.
Loam, v. i. [imp. & p. p. Loamed p. pr. & vb. n. Loaming.] To cover, smear, or fill with loam.
n : a rich soil consisting of a mixture of sand and clay and
decaying organic materials