UNDERSTRATUM
Source: 567
Un″der‐stra′tum (?), n.; pl. L. Understrata (�), E. Understratums (�). The layer, or stratum, of earth on which the mold, or soil, rests; subsoil.
Source: 567
Un″der‐stra′tum (?), n.; pl. L. Understrata (�), E. Understratums (�). The layer, or stratum, of earth on which the mold, or soil, rests; subsoil.