Substrate
/sˈʌˌbstreɪt/
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Definition
(noun) An underlying layer; a substratum.
Sentence Examples
Pre-Greek is a substrate language hypothesized to explain certain Greek words of non-Indo-European origin.
Aramaic features an Akkadian substrate.
CEFR Practice Quiz
In the experiment, the enzyme binds to a specific ____ to catalyze the necessary chemical reaction.