英文英文字典
英文英文字典
古腾堡计划中的在线英语-英语词典
字典
Vascular
(a.)
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. )
of Vascularity
Vascularity
(n.)
The quality or state of being vascular.
Vasculose
(n.)
One of the substances of which vegetable tissue is
composed, differing from cellulose in its solubility in certain media.
Vasculum
(n.)
Same as Ascidium, n., 1.
Vasculum
(n.)
A tin box, commonly cylindrical or flattened, used in
collecting plants.
Vase
(n.)
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.)
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.)
The body, or naked ground, of the Corinthian and Composite
capital; -- called also tambour, and drum.
Vase
(n.)
The calyx of a plant.
Vase-shaped
(a.)
Formed like a vase, or like a common flowerpot.
Vaseline
(n.)
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.
Vasiform
(a.)
Having the form of a vessel, or duct.
Vaso-inhibitory
(a.)
See Vasodilator.
Vasoconstrictor
(a.)
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.)
A substance which causes constriction of the blood
vessels. Such substances are used in medicine to raise blood pressure.
Vasodentine
(n.)
A modified form of dentine, which is permeated by
blood capillaries; vascular dentine.
Vasodilator
(a.)
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.)
Concerned in the development and formation of blood
vessels and blood corpuscles; as, the vasoformative cells.
Vasomotor
(a.)
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.