lipid

noun

lip·​id ˈli-pəd How to pronounce lipid (audio)
variants or less commonly lipide
: 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, phospholipids, cerebrosides, and related and derived compounds
lipidic adjective

Examples of lipid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Periods of weight loss deliver real, measurable improvements in blood sugar, blood pressure and lipid levels. Allison Palmer updated June 13, Miami Herald, 13 June 2026 Research comparing obese and non-obese horses has found that their serum lipid profile closely mirrors that of obese humans, with the same elevations in free fatty acids and the same patterns of fatty acid accumulation associated with inflammation. Joshua Moen, STAT, 8 June 2026 Doctors typically combine fasting glucose, hemoglobin A1C, fasting insulin and a lipid profile, then add more specific tools like HOMA-IR or a Lipoprotein Insulin Resistance score when the picture warrants a closer look. Samantha Agate, Charlotte Observer, 3 June 2026 The oil-free eye cream contains three essential ceramides (NP, AP, and EOP), which help restore the skin barrier with lipids found naturally in the skin. Caley Sturgill, Southern Living, 2 June 2026 See All Example Sentences for lipid

Word History

Etymology

International Scientific Vocabulary

First Known Use

1925, in the meaning defined above

Time Traveler
The first known use of lipid was in 1925

Cite this Entry

“Lipid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lipid. Accessed 20 Jun. 2026.

Kids Definition

lipid

noun
lip·​id ˈlip-əd How to pronounce lipid (audio)
: 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 How to pronounce lipid (audio)
variants also lipide
: 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

More from Merriam-Webster on lipid

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster