'Substrata' definitions:

Definition of 'Substrata'

From: GCIDE
  • 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. [1913 Webster]
  • 2. (Metaph.) The permanent subject of qualities or cause of phenomena; substance. [1913 Webster]