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

Hyaluronic acid, glycerin, and ceramides round out the skin-comforting formula to ensure all-day hydration. —Deanna Pai, Allure, 13 Dec. 2024

If a lip mask isn't available, 100% petroleum jelly or a healing ointment with hyaluronic acid and ceramides can be used to lock in moisture. —Maryal Miller Carter, USA TODAY, 7 Dec. 2024

Each capsule has a powerful ceramide complex that strengthens your skin’s moisture barrier and keeps it hydrated and healthy. —Claire Rutter, Rolling Stone, 5 Dec. 2024

This pink juice uses ceramides and hyaluronic acid to soothe, hydrate, and brighten dark spots. —Sarah Han, Allure, 2 Dec. 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