- That which is laid or spread under; that which
underlies something, as a layer of earth lying under another;
specifically (Agric.), the subsoil. - The permanent subject of qualities or cause of
phenomena; substance.
Meaning of 'substratum' (Princeton's WordNet)
1 . substratum
[ n]
Meaning (1): - an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population
Example in sentence:
the Celtic languages of Britain are a substrate for English
Meaning (2): - a surface on which an organism grows or is attached
Example in sentence:
the gardener talked about the proper substrate for acid-loving plants