from
The Collaborative International Dictionary of English v.0.48
Injection \In*jec"tion\, n. [L. injectio : cf. F. injection.]
1. The act of injecting or throwing in; -- applied
particularly to the forcible insertion of a liquid or gas,
by means of a syringe, pump, etc.
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2. That which is injected; especially, a liquid inserted
thrown into a cavity of the body by a syringe or pipe; a
clyster; an enema. --Mayne.
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3. (Anat.)
(a) The act or process of filling vessels, cavities, or
tissues with a fluid or other substance.
(b) A specimen prepared by injection.
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4. (Steam Eng.)
(a) The act of throwing cold water into a condenser to
produce a vacuum.
(b) The cold water thrown into a condenser.
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{Injection cock}, or {Injection valve} (Steam Eng.), the cock
or valve through which cold water is admitted into a
condenser.
{Injection condenser}. See under {Condenser}.
{Injection pipe}, the pipe through which cold water is
through into the condenser of a steam engine.
{fuel injection}, a method of inserting fuel into
internal-combustion engines by directly forcing the liquid
fuel into the combustion chamber at an appropriate point
in the piston cycle; in contrast to {carburetion}, in
which an air-fuel mixture is drawn in by the downward
stroke of the piston.
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from
The Collaborative International Dictionary of English v.0.48
Condenser \Con*dens"er\, n.
1. One who, or that which, condenses.
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2. (Physic)
(a) An instrument for condensing air or other elastic
fluids, consisting of a cylinder having a movable
piston to force the air into a receiver, and a valve
to prevent its escape.
(b) An instrument for concentrating electricity by the
effect of induction between conducting plates
separated by a nonconducting plate.
(c) A lens or mirror, usually of short focal distance,
used to concentrate light upon an object.
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3. (Chem.) An apparatus for receiving and condensing the
volatile products of distillation to a liquid or solid
form, by cooling.
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4. (Steam Engine) An apparatus, separate from the cylinder,
in which the exhaust steam is condensed by the action of
cold water or air. See Illust. of {Steam engine}.
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{Achromatic condenser} (Optics), an achromatic lens used as a
condenser.
{Bull's-eye condenser}, or {Bull's-eye} (Optics), a lens of
short focal distance used for concentrating rays of light.
{Injection condenser}, a vessel in which steam is condensed
by the direct contact of water.
{Surface condenser}, an apparatus for condensing steam,
especially the exhaust of a steam engine, by bringing it
into contact with metallic surface cooled by water or air.
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