Vascular

Vascular is an adjective for the word vessel and refers to tube-like structures.

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• In Zoology, more specifically anatomy and physiology, "vascular" means "related to blood vessels". An organ or tissue that is vascularized is heavily endowed with blood vessels and thus richly supplied with blood.
• In Botany, vascular plants are plants with a dedicated transport system for water. Vascular plants include ferns, conifers and flowering plants. A vascular bundle is part of such a transport system.