Vascular

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Vascular \Vas"cu*lar\, a. [L. vasculum a small vessel, dim. of
     vas vessel: cf. F. vasculaire. See {Vase}, and cf. Vessel.]
     [1913 Webster]
     1. (Biol.)
        (a) 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.
        (b) 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.
        (c) Of or pertaining to the vessels of animal and
            vegetable bodies; as, the vascular functions.
            [1913 Webster]
  
     2. (Bot.) 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.
        [1913 Webster]
  
     {Vascular plants} (Bot.), plants composed in part of vascular
        tissue, as all flowering plants and the higher
        cryptogamous plants, or those of the class Pteridophyta.
        Cf. {Cellular plants}, under {Cellular}.
  
     {Vascular system} (Bot.), the body of associated ducts and
        woody fiber; the fibrovascular part of plants.
  
     {Vascular tissue} (Bot.), vegetable tissue composed partly of
        ducts, or sap tubes.
  
     {Water vascular system} (Zool.), a system of vessels in
        annelids, nemerteans, and many other invertebrates,
        containing a circulating fluid analogous to blood, but not
        of the same composition. In annelids the fluid which they
        contain is usually red, but in some it is green, in others
        yellow, or whitish.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  vascular
       adj : of or relating to or having vessels that conduct and
             circulate fluids; "vascular constriction"; "a vascular
             bundle" [ant: {avascular}]