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1670s, from Modern Latin vascularis "of or pertaining to vessels or tubes," from Latin vasculum, diminutive of vas "vessel."
vascularity vas·cu·lar·i·ty (vās'kyə-lār'ĭ-tē)
The condition of being vascular.
vascular vas·cu·lar (vās'kyə-lər)
Or, relating to, or containing blood vessels.