Their expectations will meet with vacuity.
Glanvill.
||Va*cu"na (?), n. [L. vacuus unoccupied.] (Rom. Myth.) The goddess of
||rural leisure, to whom the husbandmen sacrificed at the close of the
||harvest. She was especially honored by the Sabines.
||
Vac"u*o*la`ted (?), a. (Biol.) Full of vacuoles, or small air cavities;
as, vacuolated cells.
Vac"u*o*la"tion (?), n. (Biol.) Formation into, or multiplication of,
vacuoles.
Vac"u*ole (?), n. [L. vacuus empty: cf. F. vacuole.] (Biol.) A small
air cell, or globular space, in the interior of organic cells, either
containing air, or a pellucid watery liquid, or some special chemical
secretions of the cell protoplasm.
Contractile vacuole. (Zoöl.) See under Contractile, and see Illusts. of
Infusoria, and Lobosa. — Food vacuole. (Zoöl.) See under Food, and see
Illust. of Infusoria.
Vac"u*ous (?), a. [L. vacuus. See Vacant.] Empty; unfilled; void;
vacant.
Boundless the deep, because I am who fill Infinitude; nor vacuous the
space.
Milton.
That the few may lead selfish and vacuous days.
J. Morley.
Vac"u*ous*ness, n. The quality or state of being vacuous; emptiness;
vacuity. W. Montagu.
Vac"u*um (?), n.; pl. E. Vacuums (#), L. Vacua (#). [L., fr. vacuus
empty. See Vacuous.] 1. (Physics) A space entirely devoid of matter
(called also, by way of distinction, absolute vacuum); hence, in a more
general sense, a space, as the interior of a closed vessel, which has
been exhausted to a high or the highest degree by an air pump or other
artificial means; as, water boils at a reduced temperature in a vacuum.
<! p. 1591 !>
2. The condition of rarefaction, or reduction of pressure below that of
the atmosphere, in a vessel, as the condenser of a steam engine, which
is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of
mercury, or 13 pounds per square inch.
Vacuum brake, a kind of continuous brake operated by exhausting the air
from some appliance under each car, and so causing the pressure of the
atmosphere to apply the brakes. — Vacuum pan (Technol.), a kind of
large closed metallic retort used in sugar making for boiling down
sirup. It is so connected with an exhausting apparatus that a partial
vacuum is formed within. This allows the evaporation and concentration
to take place at a lower atmospheric pressure and hence also at a lower
temperature, which largely obviates the danger of burning the sugar,
and shortens the process. — Vacuum pump. Same as Pulsometer, 1. —
Vacuum tube (Phys.), a glass tube provided with platinum electrodes and
exhausted, for the passage of the electrical discharge; a Geissler
tube. — Vacuum valve, a safety valve opening inward to admit air to a
vessel in which the pressure is less than that of the atmosphere, in
order to prevent collapse. — Torricellian vacuum. See under
Torricellian.
||Va*dan"tes (?), n. pl. [NL., from L. vadans, p. pr. of vadare to
||wade, to ford.] (Zoöl.) An extensive artificial group of birds
||including the wading, swimming, and cursorial birds.
||
Vade (?), v. i. [For fade.] To fade; hence, to vanish. [Obs.] " Summer
leaves all vaded." Shak.
They into dust shall vade.
Spenser.
Va`de me"cum (?). [L., go with me.] A book or other thing that a person
carries with him as a constant companion; a manual; a handbook.
Vad"i*mo*ny (?), n. [L. vadimonium.] (Law) A bond or pledge for
appearance before a judge on a certain day. [Obs.]
||Va"di*um (?), n. [LL., from L. vas, vadis, bail.] (Law) Pledge;
||security; bail. See Mortgage.
||
Vadium vivum [LL.] (Law), a living pledge, which exists where an estate
is granted until a debt is paid out of its proceeds.