arteriolosclerosis

noun

ar·​te·​rio·​lo·​scle·​ro·​sis är-ˌtir-ē-ˌō-(ˌ)lō-sklə-ˈrō-səs, -ē-ə-ˌlō- 

plural arterioloscleroses -ˌsēz 

: thickening of the intima of arterioles (as of the kidney in hypertension) by hyaline and fatty deposits that reduce the lumen and obstruct blood flow