Cholesterol

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Lipid

By Jennifer Moll, About.com

Updated: September 25, 2008

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

Definition: A lipid is a fat-like molecule that does not have the ability to dissolve in water and includes molecules such as cholesterol and triglycerides.

Lipids are one of the major building blocks of animal cells. Many times, lipids will be referred to as a "fat".

Also Known As: Fat

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Cholesterol

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