Meaning of LOAM in English
Rich, friable (crumbly) soil with nearly equal parts of sand and silt, and somewhat less clay.
The term is sometimes used imprecisely to mean earth or soil in general. Loam in subsoil receives varied minerals and amounts of clay by leaching (percolation) from the topsoil above.
Britannica Concise Encyclopedia. Краткая энциклопедия Британика. 2012