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

More viscous than your average face mist, the milky formula is laced with ceramides and lipids to relieve tight, thirsty skin and refresh dull, dry-looking makeup without so much as a flush or a tingle. —Sophia Panych, Allure, 16 Sep. 2025

If the lipids oxidize after the plant dies, much of the benefit could vanish. —Aamir Khollam, Interesting Engineering, 13 Sep. 2025

And imaging confirmed that the plants were making so many lipids that their cells formed internal pockets containing nothing but fatty materials. —ArsTechnica, 12 Sep. 2025

When discussing this issue with your personal physician, be aware that testing for total cholesterol and LDL are included in a typical blood lipid profile. —Bryant Stamford, Louisville Courier Journal, 11 Sep. 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