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Vasa
pl.
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of Vas
Vas
n.
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A vessel; a duct.
Vasa deferentia
pl.
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of Vas
Vascular
a.
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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.
Vascular
a.
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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.
Vascular
a.
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Of or pertaining to the vessels of animal and vegetable bodies; as, the vascular functions.
Vascular
a.
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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.
Vascularities
pl.
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of Vascularity
Vascularity
n.
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The quality or state of being vascular.
Vasculose
n.
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One of the substances of which vegetable tissue is composed, differing from cellulose in its solubility in certain media.
Vascula
pl.
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of Vasculum
Vasculum
n.
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Same as Ascidium, n., 1.
Vasculum
n.
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A tin box, commonly cylindrical or flattened, used in collecting plants.
Vase
n.
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A vessel adapted for various domestic purposes, and anciently for sacrificial uses; especially, a vessel of antique or elegant pattern used for ornament; as, a porcelain vase; a gold vase; a Grecian vase. See Illust. of Portland vase, under Portland.
Vase
n.
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A vessel similar to that described in the first definition above, or the representation of one in a solid block of stone, or the like, used for an ornament, as on a terrace or in a garden. See Illust. of Niche.
Vase
n.
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The body, or naked ground, of the Corinthian and Composite capital; -- called also tambour, and drum.
Vase
n.
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The calyx of a plant.
Vaseline
n.
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A yellowish translucent substance, almost odorless and tasteless, obtained as a residue in the purification of crude petroleum, and consisting essentially of a mixture of several of the higher members of the paraffin series. It is used as an unguent, and for various purposes in the arts. See the Note under Petrolatum.
Vase-shaped
a.
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Formed like a vase, or like a common flowerpot.
Vasiform
a.
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Having the form of a vessel, or duct.
Vasoconstrictor
a.
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Causing constriction of the blood vessels; as, the vasoconstrictor nerves, stimulation of which causes constriction of the blood vessels to which they go. These nerves are also called vasohypertonic.
Vasoconstrictor
n.
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A substance which causes constriction of the blood vessels. Such substances are used in medicine to raise blood pressure.
Vasodentine
n.
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A modified form of dentine, which is permeated by blood capillaries; vascular dentine.
Vasodilator
a.
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Causing dilation or relaxation of the blood vessels; as, the vasodilator nerves, stimulation of which causes dilation of the blood vessels to which they go. These nerves are also called vaso-inhibitory, and vasohypotonic nerves, since their stimulation causes relaxation and rest.
Vasoformative
a.
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Concerned in the development and formation of blood vessels and blood corpuscles; as, the vasoformative cells.
Vaso-inhibitory
a.
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See Vasodilator.
Vasomotor
a.
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Causing movement in the walls of vessels; as, the vasomotor mechanisms; the vasomotor nerves, a system of nerves distributed over the muscular coats of the blood vessels.
Vassal
n.
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The grantee of a fief, feud, or fee; one who holds land of superior, and who vows fidelity and homage to him; a feudatory; a feudal tenant.
Vassal
n.
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A subject; a dependent; a servant; a slave.
Vassal
a.
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Resembling a vassal; slavish; servile.