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" 同义词:substratum,
any stratum or layer lying underneath another 同义词:substratum,
a surface on which an organism grows or is attached; "the gardener talked about the proper substrate for acid-loving plants" 同义词:substratum,
the substance that is acted upon by an enzyme or ferment