ceramide

noun

cer·​amide ˈsir-ə-ˌmīd 

ˈser-

plural ceramides

: any of various simple sphingolipids that are composed of a fatty acid linked to sphingosine, are found especially in cell membranes, are involved in mediating various cellular processes (such as those affecting cell differentiation and apoptosis), and act as precursors for more complex sphingolipids

The enzyme controls production of a cellular substance, ceramide, which triggers the natural process of egg cell death.

—L. Stivitz

Moisturizers containing ceramides (natural lipids that are similar in structure to those in the skin's own moisture barrier) … are also worthwhile splurges for women with dry or problem skin, according to independent tester Grove.

—Constance Cardozo

Examples of ceramide in a Sentence

Recent Examples on the Web

That's all thanks to its rich, conditioning mix of squalane and ceramides. —Sarah Han, Allure, 17 July 2024

Hydrating your skin starts with your cleanser and this cleanser from CeraVe is packed with ceramides and hyaluronic acid. —Sara Beth Bolin, USA TODAY, 22 Jan. 2024

It’s infused with hyaluronic acid, ceramides, and niacinamide—an ingredient that, notably, has been found in studies to blunt the harsh side effects of retinol. —Deanna Pai, Vogue, 6 July 2024

Like the shampoo, the conditioner is infused with the K18 peptide, which is then tag-teamed with moisturizing ceramides and polysaccharides for super soft post-shower hair. —Jennifer Hussein, Allure, 4 July 2024

Word History

Etymology

cerebroside + amide

First Known Use

1958, in the meaning defined above

Medical Definition

ceramide

noun

cer·​amide ˈsir-ə-ˌmīd 

: any of a group of amido sphingolipids formed by linking a fatty acid to sphingosine and found widely in small amounts in plant and animal tissue