| slovo | definícia |
vacua
(mass) | vacua
- vákuá |
vacua
(encz) | vacua,vakuum n: Zdeněk Brož |
vacua
(encz) | vacua,vzduchoprázdna n: Zdeněk Brož |
Vacua
(gcide) | Vacuum \Vac"u*um\ (v[a^]k"[-u]*[u^]m), n.; pl. E. Vacuums
(v[a^]k"[-u]*[u^]mz), L. Vacua (v[a^]k"[-u]*[.a]). [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.
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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.
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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) a glass tube provided with platinum electrodes and
exhausted, for the passage of the electrical
discharge; a Geissler tube.
(a) any tube used in electronic devices, containing a
vacuum and used to control the flow of electrons in a
circuit, as a vacuum diode, triode, tetrode, or
pentode.
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.
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| | podobné slovo | definícia |
vacua
(mass) | vacua
- vákuá |
evacuant
(encz) | evacuant,projímací adj: Zdeněk Broževacuant,projímadlo Zdeněk Broževacuant,purgativum Zdeněk Brož |
evacuate
(encz) | evacuate,evakuovat v: Zdeněk Brož |
evacuated
(encz) | evacuated,evakuovaný adj: Zdeněk Brož |
evacuation
(encz) | evacuation,evakuace n: Zdeněk Broževacuation,odsun n: Zdeněk Broževacuation,vyklizení n: Zdeněk Broževacuation,vystěhování n: Zdeněk Brož |
medical evacuation
(encz) | medical evacuation, n: |
vacua
(encz) | vacua,vakuum n: Zdeněk Brožvacua,vzduchoprázdna n: Zdeněk Brož |
Abevacuation
(gcide) | Abevacuation \Ab`e*vac"u*a"tion\, n. [Pref. ab- + evacuation.]
(Med.)
A partial evacuation. --Mayne. AS
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Evacuant
(gcide) | Evacuant \E*vac"u*ant\, a. [L.evacuans, -antis, p. pr. of
evacuare: cf. F. ['e]vacuant.]
Emptying; evacuative; purgative; cathartic. -- n. (Med.) A
purgative or cathartic.
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Evacuate
(gcide) | Evacuate \E*vac"u*ate\, v. t. [imp. & p. p. Evacuated; p. pr.
& vb. n. Evacuating.] [l. evacuatus, p. p. of evacuare to
empty, nullify; e out + vacuus empty, vacare to be empty. See
Vacate.]
1. To make empty; to empty out; to remove the contents of;
as, to evacuate a vessel or dish.
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2. Fig.: To make empty; to deprive. [R.]
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Evacuate the Scriptures of their most important
meaning. --Coleridge.
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3. To remove; to eject; to void; to discharge, as the
contents of a vessel, or of the bowels.
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4. To withdraw from; to quit; to retire from; as, soldiers
from a country, city, or fortress.
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The Norwegians were forced to evacuate the country.
--Burke.
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5. To make void; to nullify; to vacate; as, to evacuate a
contract or marriage. [Obs.] --Bacon.
[1913 Webster]Evacuate \E*vac"u*ate\, v. i.
1. To let blood [Obs.] --Burton.
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2. to expel stool from the bowels; to defecate.
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Evacuated
(gcide) | Evacuate \E*vac"u*ate\, v. t. [imp. & p. p. Evacuated; p. pr.
& vb. n. Evacuating.] [l. evacuatus, p. p. of evacuare to
empty, nullify; e out + vacuus empty, vacare to be empty. See
Vacate.]
1. To make empty; to empty out; to remove the contents of;
as, to evacuate a vessel or dish.
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2. Fig.: To make empty; to deprive. [R.]
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Evacuate the Scriptures of their most important
meaning. --Coleridge.
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3. To remove; to eject; to void; to discharge, as the
contents of a vessel, or of the bowels.
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4. To withdraw from; to quit; to retire from; as, soldiers
from a country, city, or fortress.
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The Norwegians were forced to evacuate the country.
--Burke.
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5. To make void; to nullify; to vacate; as, to evacuate a
contract or marriage. [Obs.] --Bacon.
[1913 Webster]evacuated \evacuated\ adj.
1. p. p. of evacuate.
[WordNet 1.5]
2. emptied of gas by being pumped out or having a vacuum
created; as, a highly evacuated glass tube.
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evacuated
(gcide) | Evacuate \E*vac"u*ate\, v. t. [imp. & p. p. Evacuated; p. pr.
& vb. n. Evacuating.] [l. evacuatus, p. p. of evacuare to
empty, nullify; e out + vacuus empty, vacare to be empty. See
Vacate.]
1. To make empty; to empty out; to remove the contents of;
as, to evacuate a vessel or dish.
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2. Fig.: To make empty; to deprive. [R.]
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Evacuate the Scriptures of their most important
meaning. --Coleridge.
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3. To remove; to eject; to void; to discharge, as the
contents of a vessel, or of the bowels.
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4. To withdraw from; to quit; to retire from; as, soldiers
from a country, city, or fortress.
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The Norwegians were forced to evacuate the country.
--Burke.
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5. To make void; to nullify; to vacate; as, to evacuate a
contract or marriage. [Obs.] --Bacon.
[1913 Webster]evacuated \evacuated\ adj.
1. p. p. of evacuate.
[WordNet 1.5]
2. emptied of gas by being pumped out or having a vacuum
created; as, a highly evacuated glass tube.
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Evacuating
(gcide) | Evacuate \E*vac"u*ate\, v. t. [imp. & p. p. Evacuated; p. pr.
& vb. n. Evacuating.] [l. evacuatus, p. p. of evacuare to
empty, nullify; e out + vacuus empty, vacare to be empty. See
Vacate.]
1. To make empty; to empty out; to remove the contents of;
as, to evacuate a vessel or dish.
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2. Fig.: To make empty; to deprive. [R.]
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Evacuate the Scriptures of their most important
meaning. --Coleridge.
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3. To remove; to eject; to void; to discharge, as the
contents of a vessel, or of the bowels.
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4. To withdraw from; to quit; to retire from; as, soldiers
from a country, city, or fortress.
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The Norwegians were forced to evacuate the country.
--Burke.
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5. To make void; to nullify; to vacate; as, to evacuate a
contract or marriage. [Obs.] --Bacon.
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Evacuation
(gcide) | Evacuation \E*vac`u*a"tion\, n. [L. evacuatio: cf. F.
['e]vacuation.]
1. The act of emptying, clearing of the contents, or
discharging. Specifically:
(a) (Mil.) Withdrawal of troops from a town, fortress,
etc.
(b) (Med.) Voidance of any matter by the natural passages
of the body or by an artificial opening; defecation;
also, a diminution of the fluids of an animal body by
cathartics, venesection, or other means.
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2. That which is evacuated or discharged; especially, a
discharge by stool or other natural means. --Quincy.
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3. Abolition; nullification. [Obs.] --Hooker.
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Evacuation day, the anniversary of the day on which the
British army evacuated the city of New York, November 25,
1783.
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Evacuation day
(gcide) | Evacuation \E*vac`u*a"tion\, n. [L. evacuatio: cf. F.
['e]vacuation.]
1. The act of emptying, clearing of the contents, or
discharging. Specifically:
(a) (Mil.) Withdrawal of troops from a town, fortress,
etc.
(b) (Med.) Voidance of any matter by the natural passages
of the body or by an artificial opening; defecation;
also, a diminution of the fluids of an animal body by
cathartics, venesection, or other means.
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2. That which is evacuated or discharged; especially, a
discharge by stool or other natural means. --Quincy.
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3. Abolition; nullification. [Obs.] --Hooker.
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Evacuation day, the anniversary of the day on which the
British army evacuated the city of New York, November 25,
1783.
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Evacuative
(gcide) | Evacuative \E*vac"u*a*tive\, a. [Cf. F. ['e]vacuatif.]
Serving of tending to evacuate; cathartic; purgative.
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Evacuator
(gcide) | Evacuator \E*vac"u*a`tor\, n.
One who evacuates; a nullifier. "Evacuators of the law."
--Hammond.
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Evacuatory
(gcide) | Evacuatory \E*vac"u*a*to*ry\, n.
A purgative.
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Vacuate
(gcide) | Vacuate \Vac"u*ate\, v. t. [L. vacuatus, p. p. of vacuare to
empty, from vacuus empty. See Vacant.]
To make void, or empty. [R.]
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Vacuation
(gcide) | Vacuation \Vac`u*a"tion\, n.
The act of emptying; evacuation. [R.]
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evacuant
(wn) | evacuant
adj 1: strongly laxative [syn: cathartic, evacuant,
purgative] |
evacuate
(wn) | evacuate
v 1: move out of an unsafe location into safety; "After the
earthquake, residents were evacuated"
2: empty completely; "evacuate the bottle"
3: move people from their homes or country
4: create a vacuum in (a bulb, flask, reaction vessel)
5: excrete or discharge from the body [syn: evacuate, void,
empty] |
evacuation
(wn) | evacuation
n 1: the act of removing the contents of something [syn:
emptying, voidance, evacuation]
2: the act of evacuating; leaving a place in an orderly fashion;
especially for protection
3: the bodily process of discharging waste matter [syn:
elimination, evacuation, excretion, excreting,
voiding] |
medical evacuation
(wn) | medical evacuation
n 1: the evacuation of persons (usually by air transportation)
to a place where they can receive medical care [syn:
medical evacuation, medevac, medivac] |
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