Substratum — synonyms, definition

1. substratum (Noun)

substrate

substratum (Noun) — A surface on which an organism grows or is attached. ex. "the gardener talked about the proper substratum for acid-loving plants"

substratum (Noun) — Any stratum or layer lying underneath another.

substratum (Noun) — An indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population. ex. "the Celtic languages of Britain are a substratum for English"

indigenous language stratum surface