Arteriosclerosis \Ar*te`ri*o*scle*ro"sis\ ([aum]r*t[=e]`r[i^]*[-o]*skl[-e]*r[=o]"s[i^]s), n. [NL.; Gr. ? artery + sclerosis.] (Med.) a chronic disease characterized by abnormal thickening and hardening of the walls of the arteries, esp. of the intima, occurring mostly in old age. Subtypes are distinguished, such as {arteriolosclerosis} and {atherosclerosis}. -- {Ar*te`ri*o*scle*rot"ic}, a. [Webster 1913 Suppl. +PJC]
arteriosclerotic \arteriosclerotic\ adj. 1. of or pertaining to arteriosclerosis. [WordNet 1.5]