Definify.com
Webster 1913 Edition
Injection
In-jec′tion
,Noun.
[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.
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.
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.
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.
Webster 1828 Edition
Injection
INJECT'ION
,Noun.
1.
A liquid medicine thrown into the body by a syringe or pipe; a clyster.2.
In anatomy, the act of filling the vessels of an animal body with some colored substance, in order to render visible their figures and ramifications.