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
Valvata
(n.)
A genus of small spiral fresh-water gastropods having an
operculum.
Valvate
(a.)
Resembling, or serving as, a valve; consisting of, or
opening by, a valve or valves; valvular.
Valvate
(a.)
Meeting at the edges without overlapping; -- said of the
sepals or the petals of flowers in aestivation, and of leaves in
vernation.
Valvate
(a.)
Opening as if by doors or valves, as most kinds of
capsules and some anthers.
Valve
(n.)
A door; especially, one of a pair of folding doors, or one
of the leaves of such a door.
Valve
(n.)
A lid, plug, or cover, applied to an aperture so that by its
movement, as by swinging, lifting and falling, sliding, turning, or the
like, it will open or close the aperture to permit or prevent passage,
as of a fluid.
Valve
(n.)
One or more membranous partitions, flaps, or folds, which
permit the passage of the contents of a vessel or cavity in one
direction, but stop or retard the flow in the opposite direction; as,
the ileocolic, mitral, and semilunar valves.
Valve
(n.)
One of the pieces into which a capsule naturally separates
when it bursts.
Valve
(n.)
One of the two similar portions of the shell of a diatom.
Valve
(n.)
A small portion of certain anthers, which opens like a
trapdoor to allow the pollen to escape, as in the barberry.
Valve
(n.)
One of the pieces or divisions of bivalve or multivalve
shells.
Valve-shell
(n.)
Any fresh-water gastropod of the genus Valvata.
Valved
(a.)
Having a valve or valve; valvate.
Valvelet
(n.)
A little valve; a valvule; especially, one of the pieces
which compose the outer covering of a pericarp.
Valvula
(n.)
A little valve or fold; a valvelet; a valvule.
Valvulae
(pl. )
of Valvula
Valvular
(a.)
Of or pertaining to a valve or valves; specifically
(Med.), of or pertaining to the valves of the heart; as, valvular
disease.
Valvular
(a.)
Containing valves; serving as a valve; opening by valves;
valvate; as, a valvular capsule.
Valvule
(n.)
A little valve; a valvelet.
Valvule
(n.)
A small valvelike process.