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lipase

(lĭ′pās, lī′pās) [″ + -ase, enzyme] A fat-splitting enzyme found in blood, pancreatic secretion, and tissues. Emulsified fats are changed in the stomach to fatty acids and glycerol by gastric lipase. SEE: digestion; enzyme.

pancreatic l. The pancreatic enzyme that digests fats emulsified by bile salts to fatty acids and glycerol.

lipectomy

(li-pek′tŏ-mē) [lipo- + -ectomy] Excision of fatty tissues.

belt l. Surgical removal of rolls of fat that encircle the entire trunk. It is used to treat morbid accumulations of fat surrounding the abdomen. SYN: circumferential belt l.

circumferential belt l. Belt lipectomy.

submental l. Surgical removal of the fat that constitutes a "double chin."

suction l. SEE: liposuction.

ultrasound-assisted l. The use of sound waves to disrupt fatty tissues so that they can be removed surgically. It is used in reducing the size of the breast during mammaplasty.

lipemia

(li-pē′mē-ă) [lipo- + -emia] An abnormal amount of fat in the blood.

alimentary l. An accumulation of fat in the blood after eating.

lipemic

(-mik), adj.

lipid, lipide

(lip′ĭd, lip′īd″) [lipo- + -ide] Any of a group of fats or fatlike substances, characterized by their insolubility in water and solubility in fat solvents such as alcohol, ether, and chloroform. "Lipid" is descriptive rather than a chemical name such as "protein" or "carbohydrate." Lipids include true fats (esters of fatty acids and glycerol); lipoids (phospholipids, cerebrosides, waxes); and sterols (cholesterol, ergosterol). SEE: fat; cholesterol for table.

lipid-based nutrient supplement

ABBR: LNS. Any nutritional supplement that uses a fat food source as a vehicle to deliver energy, proteins, vitamins, minerals, and micronutrients to malnourished or at-risk populations, e.g., those affected by famines or other food shortages.

lipidemia

(lĭp″ĭ-dē′mē-ă) Lipemia. SEE: atherosclerosis; cholesterol.

lipidomics

(lip″id-om′iks) [lipid + -omics] The study of the variety of fatty molecules in the body, their cellular and extracellular functions and interactions, and the diseases to which they contribute.

lipidosis

(lip″ĭ-dō′sĭs) [lipid + -osis] Any disorder of fat metabolism resulting in deposition of fat within organs.

arterial l. Arteriosclerosis.

cerebroside l. Gaucher disease.

lipid-soluble

(lip′ĭd-sol′yŭ-bĕl) Capable of dissolving in fats, oils, or fatty tissues, e.g., the fatty tissue within the peritoneum or the lipid-rich membranes of neurons.

lipid storage disease

A group of rare inherited disorders of fat metabolism in which ...

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