Un″der‐stra′tum (?), n.; pl. L. Understrata (�), E. Understratums (�). The layer, or stratum, of earth on which the mold, or soil, rests; subsoil.
Content
Rights and sources
Review source, license and attribution information for this content.
Content
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.