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lipase

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(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.

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

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lipectomy

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

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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.

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circumferential belt l. Belt lipectomy.

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

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suction l. SEE: liposuction.

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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.

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lipemia

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

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

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lipemic

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(-mik), adj.

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lipid, lipide

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(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.

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lipid-based nutrient supplement

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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.

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lipidemia

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

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lipidomics

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(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.

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lipidosis

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

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arterial l. Arteriosclerosis.

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cerebroside l. Gaucher disease.

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lipid-soluble

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(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.

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lipid storage disease

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

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