VASCULAR

vascular

(adjective) of or relating to or having vessels that conduct and circulate fluids; “vascular constriction”; “a vascular bundle”

Source: WordNet® 3.1

Etymology

Adjective

vascular (not comparable)

(anatomy) Relating to the flow of fluids, such as blood, lymph, or sap, through the body of an animal or plant, or to the vessels that carry such fluids

Antonym: avascular

Source: Wiktionary

Vas"cu*lar, a. Etym: [L. vasculum a small vessel, dim. of vas vessel: cf. F. vasculaire. See Vase, and cf. Vessel.]

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.

2. (Bot.)

Definition: Of or pertaining to the higher division of plants, that is, the phænogamous plants, all of which are vascular, in distinction from the cryptogams, which to a large extent are cellular only. 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, 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 (Zoöl.), 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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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