bio·​cat·​a·​lyst ˌbī-(ˌ)ō-ˈka-tə-ləst How to pronounce biocatalyst (audio)
: a catalyst (such as an enzyme) of biological origin
biocatalytic adjective

Examples of biocatalyst in a Sentence

Recent Examples on the Web The microbial biocatalyst is added, and air and methane (or CO2 and hydrogen) are pumped in. Ian Mount, Fortune, 10 Jan. 2023 Still, the emerging methods for producing biodegradable plastic offer a perfect example of how greener solvents and more effective biocatalysts can contribute to generating a circular economy in a major industry. Javier Garcia Martinez, Scientific American, 1 July 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'biocatalyst.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1918, in the meaning defined above

Time Traveler
The first known use of biocatalyst was in 1918

Dictionary Entries Near biocatalyst

Cite this Entry

“Biocatalyst.” Dictionary, Merriam-Webster, Accessed 27 May. 2024.

Medical Definition


bio·​cat·​a·​lyst -ˈkat-ᵊl-əst How to pronounce biocatalyst (audio)
: a catalyst and especially an enzyme of biological origin
biocatalysis noun
biocatalytic adjective
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