ubiquinone

noun

ubi·​qui·​none yü-ˈbi-kwə-ˌnōn  ˌyü-bə-kwi-ˈnōn 

: any of a group of lipid-soluble quinones that are found especially in mitochondria, have an isoprenoid side chain, and function in oxidative phosphorylation as electron-carrying coenzymes in electron transport

Examples of ubiquinone in a Sentence

Recent Examples on the Web

Form There are two forms of CoQ10: ubiquinone and ubiquinol. —Isabel Vasquez Rd Ldn, Verywell Health, 31 July 2023

Made up of five alpha- and beta-hydroxy acids and antioxidants (including retinol, ubiquinone and resveratrol), this combination will protect and smooth the complexion, as well as restore uniformity of tone. —Felicity Carter, Forbes, 1 Aug. 2022

Word History

Etymology

blend of Latin ubique everywhere and English quinone; from its widespread occurrence in nature

First Known Use

1958, in the meaning defined above

Medical Definition

ubiquinone

noun

ubi·​qui·​none yü-ˈbik-wə-ˌnōn  ˌyü-bi-kwi-ˈnōn 

: any of a group of lipid-soluble quinones that contain a long isoprenoid side chain and that function in the part of cellular respiration comprising oxidative phosphorylation as electron-carrying coenzymes in the transport of electrons from organic substrates to oxygen especially along the chain of reactions leading from the Krebs cycle

especially : coenzyme q10