cytochrome

noun

cy·​to·​chrome ˈsī-tə-ˌkrōm How to pronounce cytochrome (audio)
: any of several intracellular hemoprotein respiratory pigments that are enzymes functioning in electron transport as carriers of electrons

Examples of cytochrome in a Sentence

Recent Examples on the Web But for some reason, the nematode version of cytochrome P450 instead turns selectivin into a toxic chemical. Byerik Stokstad, science.org, 25 May 2023 Myoglobin binds and stores oxygen from the then passes it along to a fat-oxidizing cytochrome that generates ATP to fuel the cell. Mai Nguyen, Discover Magazine, 23 Sep. 2015 In addition to producing cytochrome P450 enzymes, the liver is one of the major organs that create special proteins called cytokines and interferons that participate in the immune response. C. Michael White, The Conversation, 4 Oct. 2021 Inflammation from a new infection or chronic inflammatory disease like rheumatoid arthritis or psoriasis could also impair how well enzymes like cytochrome P450 can metabolize drugs. C. Michael White, The Conversation, 4 Oct. 2021 These images showed the component parts of cytochrome b6f down to the level of individual molecules. Emily Willingham, Scientific American, 13 Nov. 2019 Individual cytochromes are important for moving electrons around inside cells. New York Times, 1 July 2019 This is how researchers can look at the koala genome and see how the species is genetically supercharged to digest a plant that’s poisonous to other mammals, namely the cytochrome P450 gene family. Matt Simon, WIRED, 2 July 2018 Arnold and her colleagues have been working with the bacterial version of cytochrome P450 for ten years, trying to convince it to perform new tricks. Jeffrey Marlow, WIRED, 8 Jan. 2013

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cytochrome.' 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

1925, in the meaning defined above

Time Traveler
The first known use of cytochrome was in 1925

Dictionary Entries Near cytochrome

Cite this Entry

“Cytochrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cytochrome. Accessed 16 Apr. 2024.

Kids Definition

cytochrome

noun
cy·​to·​chrome ˈsīt-ə-ˌkrōm How to pronounce cytochrome (audio)
: any of several iron-containing pigments that transfer electrons to molecules of oxygen in the living cell

Medical Definition

cytochrome

noun
cy·​to·​chrome ˈsīt-ə-ˌkrōm How to pronounce cytochrome (audio)
: any of several intracellular hemoprotein respiratory pigments that are enzymes functioning in electron transport as carriers of electrons

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