lipid

noun

lip·​id ˈli-pəd 

variants or less commonly lipide

ˈli-ˌpīd 

: any of various substances that are soluble in nonpolar organic solvents (such as chloroform and ether), that are usually insoluble in water, that with proteins and carbohydrates constitute the principal structural components of living cells, and that include fats, waxes, phosphatides, cerebrosides, and related and derived compounds

lipidic

li-ˈpi-dik 

adjective

Examples of lipid in a Sentence

Recent Examples on the Web

Researchers are still investigating the link between late-onset menopause and better heart health, though estrogen, lipid levels, and oxidative stress may all play a role. —Elizabeth Yuko, Health, 19 Apr. 2025

Your options include: Topical (spot-on) products are applied to the animal’s back; the medication is spread through the lipid/fatty layer across the pet’s skin and coat. —Arricca Elin Sansone, Southern Living, 31 Mar. 2025

These molecules can damage DNA, proteins and lipids in cells in a process called oxidative stress. —Pranoti Mandrekar, The Conversation, 7 Apr. 2025

Plus, a blend of soybeans and lipids work together to add moisture and fight unwanted frizz. —Conçetta Ciarlo, Vogue, 4 Apr. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1912, in the meaning defined above

Kids Definition

lipid

noun

lip·​id ˈlip-əd 

: any of various substances (as fats and waxes) that with proteins and carbohydrates make up the principal structural parts of living cells

Medical Definition

lipid

noun

lip·​id ˈlip-əd 

variants also lipide

-ˌīd 

: any of various substances that are soluble in nonpolar organic solvents (as chloroform and ether), that with proteins and carbohydrates constitute the principal structural components of living cells, and that include fats, waxes, phospholipids, cerebrosides, and related and derived compounds