atherosclerosis
ath·er·o·scle·ro·sis (th-r-skl-rss) KEY

NOUN:
A form of arteriosclerosis characterized by the deposition of atheromatous plaques containing cholesterol and lipids on the innermost layer of the walls of large and medium-sized arteries.
ar·te·ri·o·scle·ro·sis (är-tîr--skl-rss) KEY

NOUN:
A chronic disease in which thickening, hardening, and loss of elasticity of the arterial walls result in impaired blood circulation. It develops with aging, and in hypertension, diabetes, hyperlipidemia, and other conditions.

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