Hyperlipidemia: Elevated lipid (fat) levels in the blood. Hyperlipidemia can be inherited and increases the risk of disease of the blood vessels leading to stroke and heart disease.
From 
Cholesterol Resources
References
American Heart Association. Hyperlipidemia.
<http://www.americanheart.org/presenter.jhtml?identifier=4600>
<http://www.americanheart.org/presenter.jhtml?identifier=4600>