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say it: SUHB-strayt
substrate is a noun meaning "the substance that is acted upon by an enzyme or ferment". It carries 4 recorded senses.
the substance that is acted upon by an enzyme or ferment
a surface on which an organism grows or is attached
“the gardener talked about the proper substrate for acid-loving plants”
any stratum or layer lying underneath another
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”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for substrate come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.