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substratum |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Substratum \Sub*stra"tum\, n.; pl {Substrata}. [L. substratus, p. p. of substernere to strew under sub under + sternere to strew. See {Stratum}.] 1. That which is laid or spread under that which underlies something as a layer of earth lying under another; specifically (Agric.), the subsoil. 2. (Metaph.) The permanent subject of qualities or cause of phenomena; substance. From WordNet r 1.6 [wn]: substratum n : any stratum lying underneath another [syn: {substrate}]
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