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ENGLISH · A WORD WITH POSSIBILITIES

substrate.

An underlying layer; a substratum.

9 characters2 syllables approx.English language

Meaning & usage

noun/ˈsʌbˌstɹeɪt/Canada, General-American, Received-Pronunciation/ˈsɐbˌstɹæɪt/Australia, New-Zealand
  1. An underlying layer; a substratum.

  2. 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.
  3. A substance acted upon, as by an enzyme.

  4. 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.
  5. A language that is replaced in a population by another language and that influences the language imposed on its speakers.

  6. A metal which is plated with another metal which has different physical properties.

  7. A surface to which a substance adheres.

Where this word comes from

Anglicization of substratum.

verb/ˈsʌbˌstɹeɪt/Canada, General-American, Received-Pronunciation/ˈsɐbˌstɹæɪt/Australia, New-Zealand
  1. To strew or lay under.

    obsolete · transitive
Where this word comes from

Anglicization of substratum.

adj/ˈsʌbˌstɹeɪt/Canada, General-American, Received-Pronunciation/ˈsɐbˌstɹæɪt/Australia, New-Zealand
  1. Having very slight furrows.

Where this word comes from

Anglicization of substratum.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.