Definition of Lipid

1. Noun. An oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates).

Exact synonyms: Lipide, Lipoid
Specialized synonyms: Fat, Triglyceride, Oil, Phospholipid, Wax
Generic synonyms: Macromolecule, Supermolecule

Definition of Lipid

1. Noun. (chemistry) Any of a group of organic compounds including the fats, oils, waxes, sterols, and triglycerides. Lipids are characterized by being insoluble in water, and account for most of the fat present in the human body. They are, however, soluble in nonpolar organic solvents. ¹

¹ Source:

Definition of Lipid

1. any of a class of fatty substances [n -S] : LIPIDIC [adj]

Medical Definition of Lipid

1. Any of a heterogeneous group of flats and fatlike substances characterised by being water insoluble and being extractable by nonpolar (or fat) solvents such as alcohol, ether, chloroform, benzene, etc. All contain as a major constituent aliphatic hydrocarbons. The lipids, which are easily stored in the body, serve as a source of fuel, are an important constituent of cell structure and serve other biological functions. Lipids may be considered to include fatty acids, neutral fats, waxes and steroids. Compound lipids comprise the glycolipids, lipoproteins and phospholipids. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lipid Pictures

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Lexicographical Neighbors of Lipid

lipase test
lipedematous alopecia
lipid (current term)
lipid-lowering medication
lipid-lowering medicine
lipid-mobilizing hormone
lipid A
lipid A 4'-phosphatase
lipid A disaccharide synthase
lipid bilayer
lipid bilayers
lipid granulomatosis
lipid histiocytosis
lipid keratopathy
lipid mobilization
lipid peroxidation
lipid peroxides

Literary usage of Lipid

Below you will find example usage of this term as found in modern and/or classical literature:

1. Science by American Association for the Advancement of Science (1883)
"These findings are consistent with the possibility that lipid peroxidation ... According to this hypothesis, a deficiency of the lipid antioxidant vitamin E ..."

2. Oxygen/Nitrogen Radicals and Cellular Injury edited by Kenneth B. Adler, Robert D. Devlin, Val Vallyathan (2000)
"lipid Peroxidation Products and Antioxidants in Human Disease Francisco J. Romero, Francisco Bosch-Morell, Maria J. Romero, Enrique J. Jareño, Belén Romero, ..."

3. The Journal of Comparative Pathology and Therapeutics (1888)
"lipid REACTION OF LEUCOCYTE GRANULES IN SHEEP AND MAN By H. WINTER Veterinary School, University of Queensland, Brisbane, Australia INTRODUCTION Attention ..."

4. Second Report of the Expert Panel on Detection, Evaluation, and Treatment of Scott M. Grundy by Scott M. Grundy (1997)
"Selection of lipid-Lowering Therapy Selection of drug therapy for patients with elevated ... The five classes of lipid-lowering agents are bile acid ..."

5. Use of Sediment Quality Guidelines and Related Tools for the Assessment of by Richard J. Wenning (2005)
"lipid content oT lipid content in organisms is an important factor for ... Even though the lipid content g" in many invertebrates approximates 5% (dry ..."

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