Main Entry: ubi·qui·none

Pronunciation: \yü-ˈbi-kwə-ˌnōn, ˌyü-bə-kwi-ˈnōn\

Function: noun

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

Date: 1958

: 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