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

As the name suggests, this formula features a potent blend of hyaluronic acid and ceramides, plus panthenol to add a deep conditioning effect. —Jessie Quinn, People.com, 1 Nov. 2024

Others may find that certain face creams, especially those formulated with hyaluronic acid or ceramides, provide lasting hydration without a heavy feel. —Sandra Rose Salathe, Flow Space, 30 Oct. 2024

Products with ingredients like hyaluronic acid, glycerin, and ceramides are essential for locking in moisture and restoring that crucial skin barrier. —Kelsey Eisen, Allure, 28 Oct. 2024

Key Ingredients: Mango butter, ceramides, hyaluronic acid Size: 0.5 oz. —Emily Orofino, Vogue, 21 Oct. 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