Vascular system
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 ph[ae]nogamous 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}, {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} (Zo["o]l.), 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]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • vascular system — noun the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant • Hypernyms: ↑system • Hyponyms: ↑water vascular system, ↑portal system, ↑lymphatic system, ↑systema lymphaticum,… …   Useful english dictionary

  • vascular system — ▪ plant physiology       in plants, assemblage of conducting tissues and associated supportive fibres. xylem tissue transports water and dissolved minerals to the leaves, and phloem tissue conducts food from the leaves to all parts of the plant.… …   Universalium

  • vascular system — 1. A specialized network of vessels for the circulation of fluids throughout the body tissue of an animal. 2. The system of vascular tissue in plants …   Glossary of Biotechnology

  • vascular system — see cardiovascular system * * * the blood and lymphatic vessels of the body and all their ramifications, considered collectively. The term is sometimes used specifically to denote either the blood or lymphatic vessels and their respective… …   Medical dictionary

  • vascular system — see cardiovascular system …   The new mediacal dictionary

  • Water vascular system — 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;… …   The Collaborative International Dictionary of English

  • Water vascular system — The water vascular system is a hydraulic system used by echinoderms, such as starfish and sea urchins, for locomotion, food and waste transportation, and respirationcite book | first = Eldra | last = Solomon| coauthors = Linda Berg, Diana Martin… …   Wikipedia

  • water-vascular system — [wôt′ərvas′kyə lər] n. in echinoderms, a system of closed tubes and ducts filled with sea water containing some protein, and functioning variously, as in locomotion, food gathering, clinging, and respiration …   English World dictionary

  • water vascular system — noun system of fluid filled tubes used by echinoderms in locomotion and feeding and respiration • Hypernyms: ↑vascular system • Part Holonyms: ↑echinoderm …   Useful english dictionary

  • water vascular system — (ECHINODERMATA) A unique system comprised of tube like body wall appendages (tube feet), and a system of canals derived from the coelom …   Dictionary of invertebrate zoology

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