: a lipoprotein of blood plasma that is composed of a moderate proportion of protein with little triglyceride and a high proportion of cholesterol and that is associated with increased probability of developing atherosclerosis : bad cholesterol compare hdl

Examples of LDL in a Sentence

Recent Examples on the Web
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For context, consuming five to 10 grams of soluble fiber each day can help reduce LDL cholesterol, says Samantha Coogan, MS, RDN, LD, FAND. Kirsten Nunez, Martha Stewart, 17 May 2026 Switching to foods that provide polyunsaturated fats, which directly lower LDL, and others that contain plant sterols and stanols, which block the absorption of cholesterol, can lower your numbers, according to Harvard Medical School. Gavin Escott, USA Today, 15 May 2026 Canned Tomatoes Canned tomatoes are rich in fiber and lycopene, an antioxidant linked to reduced levels of LDL cholesterol. Carrie Madormo, Verywell Health, 8 May 2026 The rapidly growing company says its patients show 50% greater reduction in diabetes markers, weight, and LDL cholesterol—a major predictor of heart attacks and strokes—than published clinical benchmarks. Alison Van Houten, Time, 30 Apr. 2026 See All Example Sentences for LDL

Word History

Etymology

low-density lipoprotein

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of LDL was in 1962

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Cite this Entry

“LDL.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/LDL. Accessed 20 May. 2026.

Medical Definition

: a lipoprotein of blood plasma that is composed of a moderate proportion of protein with little triglyceride and a high proportion of cholesterol and that is associated with increased probability of developing atherosclerosis

called also bad cholesterol, beta-lipoprotein, low-density lipoprotein

compare hdl, vldl
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