adj of or pertaining to the vessels of animal and vegetable bodies; as, the vascular functions.
2. vascular ·adj operating by means of, or made up of an arrangement of, vessels; as, the vascular system in animals, including the arteries, veins, capillaries, lacteals, ·etc.
3. vascular ·adj of or pertaining to the higher division of plants, that is, the phaenogamous plants, all of which are vascular, in distinction from the cryptogams, which to a large extent are cellular only.
4. vascular ·adj consisting of, or containing, vessels as an essential part of a structure; full of vessels; specifically (bot.), pertaining to, or containing, special ducts, or tubes, for the circulation of sap.