squalene

noun

squa·​lene ˈskwā-ˌlēn 

: an acyclic hydrocarbon C₃₀H₅₀ that is widely distributed in nature (such as a major component of sebum and in shark-liver oils) and is a precursor of sterols (such as cholesterol)

Examples of squalene in a Sentence

Recent Examples on the Web

The medical-grade formula also contains magnolia bark extract to soothe inflammation, as well as ceramides and squalene to actively bolster the skin barrier. —Deanna Pai, Allure, 21 July 2024

Featuring a blend of gardenia extract, coconut oil, mango butter, and squalene, the formula leaves lips supple and shiny for hours on end. —Venus Wong, refinery29.com, 18 June 2024

It’s made up of a collection of fat molecules, waxes and squalene, an oil compound. —Scott Lafee, San Diego Union-Tribune, 19 Mar. 2024

There’s a difference between squalene and squalane—aside from the spelling. —Jenna Ryu, SELF, 9 Feb. 2024

Word History

Etymology

International Scientific Vocabulary, from Latin squalus, a sea fish — more at whale

First Known Use

1916, in the meaning defined above

Medical Definition

squalene

noun

squa·​lene ˈskwā-ˌlēn 

: an acyclic hydrocarbon C₃₀H₅₀ that is widely distributed in nature (as a major component of sebum and in shark-liver oils) and is a precursor of sterols (as cholesterol)