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BNC: 10923 COCA: 13740
BNC: 10923 COCA: 13740

substrate

noun

sub·​strate ˈsəb-ˌstrāt How to pronounce substrate (audio)
1
: substratum
2
: the base on which an organism lives
the soil is the substrate of most seed plants
3
: a substance acted upon (as by an enzyme)

Did you know?

With its Latin prefix sub-, "below", substrate obviously refers to a layer under something else. Rock may serve as the substrate for the coral in a coral reef. Tiny wafers of silicon (or another semiconductor) serve as the substrate for computer chips. Substrate may also mean subsoil—that is, the layer under the topsoil, lacking in organic matter or humus. Substrate is part of the vocabulary of various other sciences, including chemistry and biology. But although it's mostly a scientific term, writers may also use it to mean simply "foundation"—for instance, when observing that reading is the substrate on which most other learning is based.

Example Sentences

Recent Examples on the Web For the assay, 12 different human P450s were mixed with a serum sample and fluorescent substrate to induce a reaction. William A. Haseltine, Forbes, 17 Aug. 2022 That special substrate, the researchers surmise, helped revive the pig organs. Wired, 5 Aug. 2022 The fertilizer and water delivery for this system is a variation of the Nutrient Film Technique which is a hybrid of hydroponic and active substrate methods. Steven Savage, Forbes, 12 July 2022 Instead of trying to fumigate away the dangers lurking in the soil each year, growers can throw out last year’s substrate and put in a new batch. Sam Deanstaff Writer, Los Angeles Times, 26 July 2022 Black sooty mold fungus grows in the honeydew substrate. Neil Sperry, San Antonio Express-News, 1 July 2022 The organic materials sit on a silicon substrate rather than glass. Chris Smith, BGR, 12 July 2022 It is left to the reader to decide whether the core self is our true essence or merely a substrate of the fuller, and more fragile, self that shapes a coherent autobiography from the building blocks of memory. Julian Baggini, WSJ, 3 May 2022 Play is the substrate of autoconstrucción and its driving force, even as Cruzvillegas alternately breaks up and buttresses the idea with a catholic range of historical and artistic touchpoints, interests and memories. Christina Catherine Martinez, Los Angeles Times, 11 Apr. 2022 See More

Word History

Etymology

Medieval Latin substratum

First Known Use

1730, in the meaning defined at sense 1

Time Traveler
The first known use of substrate was in 1730
BNC: 10923 COCA: 13740

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