substratum : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: substratum	by the DICT Development Group
2 results for substratum
From WordNet (r) 3.0 (2006) [wn]:
substratum n a surface on which an organism grows or is attached; "the gardener talked about the proper substrate for acid-loving plants" Synonym(s): substrate, substratum any stratum or layer lying underneath another Synonym(s): substrate, substratum an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population; "the Celtic languages of Britain are a substrate for English" Synonym(s): substrate, substratum
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.