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Definition of Substratum
1. Noun. A surface on which an organism grows or is attached. "The gardener talked about the proper substrate for acid-loving plants"
2. Noun. Any stratum or layer lying underneath another.
3. Noun. 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"
Definition of Substratum
1. n. That which is laid or spread under; that which underlies something, as a layer of earth lying under another; specifically (Agric.), the subsoil.
Definition of Substratum
1. Noun. A layer that lies underneath another ¹
2. Noun. (figuratively) The underlying cause or basis of something ¹
¹ Source: wiktionary.com
Definition of Substratum
1. [n -TA or -TUMS]