• IPA: /ˈsʌbstɹeɪt/

substrate (plural substrates)

  1. (biochemistry) What an enzyme acts upon.
  2. (biology) A surface on which an organism grows, or to which an organism or an item is attached.
    The rock surface of a rockpool is the substrate for a sessile organism such as a limpet.
    • 2006, Edward A. Wasserman, Thomas R. Zentall, Comparative Cognition: Experimental Explorations of Animal Intelligence ISBN 0195167651, page 520:
      Detach/subtract [tasks involve] Severing a fixed attachment between environmental objects (or the substrate) or removing object(s) from another unattached object, so the latter is a more useful tool.
  3. An underlying layer; a substratum.
  4. (linguistics) A language that is replaced in a population by another language and that influences the language imposed on its speakers.
  5. (plating) A metal which is plated with another metal which has different physical properties.
  6. (construction) A surface to which a substance adheres.
  7. The substance lining the bottom edge of an enclosure.
    The substrate of an aquarium can affect the water's acidity.
    Stream substrate affects fish longevity.
Synonyms Translations Translations Translations Translations Translations Verb

substrate (substrates, present participle substrating; past and past participle substrated)

  1. (obsolete, transitive) To strew or lay under.
    • The melted glass being supported by the substrated sand.


  1. Having very slight furrows.

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