ˈsōləm noun
( plural so·la -lə ; see sense 2 )
Etymology: New Latin, from Latin, base, ground, earth, soil
1. : soil , land ; especially : a parcel of ground — used especially in law
2. or pl solums : the layer of soil which lies above the parent material, in which the natural processes of soil formation take place, and which in well-developed soils is greatly altered from the parent material and includes the A- and B-horizons — called also true soil ; distinguished from topsoil