Degeneration, atrophy, or wasting of blood vessels or vascular tissue over time.
From Greek 'angion' (vessel) + 'atrophia' (wasting away). This pathological term describes how blood vessels can deteriorate due to disease, aging, or lack of use.
When blood vessels shrink and waste away, that's angiostrophy—it's what happens in some diabetic patients whose small blood vessels gradually deteriorate from chronically high blood sugar!
Complete word intelligence in one call. Free tier — 50 lookups/day.