The Collaborative International Dictionary of English v.0.48:

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]

The Collaborative International Dictionary of English v.0.48:

arteriosclerotic \arteriosclerotic\ adj.
   1. of or pertaining to arteriosclerosis.
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

arteriosclerotic
    adj 1: affected by arteriosclerosis