Dictionary Check: substratum

"substratum" is a valid word!

Scrabble 14 points
Words with Friends 18 points

Definition

noun

a surface on which an organism grows or is attached

Example: "the gardener talked about the proper substrate for acid-loving plants"
Synonyms:
noun

any stratum or layer lying underneath another

Synonyms:
noun

an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population

Example: "the Celtic languages of Britain are a substrate for English"
Synonyms:

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