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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.
[L. injectio.] The act of throwing in, particularly that of throwing a liquid medicine into the body by a syringe or pipe.
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.

Definition 2024


injection

injection

See also: înjection

English

An injection

Noun

injection (plural injections)

  1. The act of injecting, or something that is injected.
  2. (specifically, medicine) Something injected subcutaneously, intravenously, or intramuscularly by use of a syringe and a needle.
  3. (set theory) A function that maps distinct x in the domain to distinct y in the codomain; formally, a f: X  Y such that f(a) = f(b) implies a = b for any a, b in the domain.
  4. (mathematics) A relation on sets (X,Y) that associates each element of Y with at most one element of X.
  5. (figuratively) The addition of money to someone, or to a business.
    The troubled business received a much-needed cash injection.
  6. (programming) The insertion of program code into an application, URL, hardware, etc.; especially when malicious or when the target is not designed for such insertion.
    a SQL injection exploit allowing a malicious user to modify a database query
  7. A specimen prepared by injection.
  8. (steam engines) The act of throwing cold water into a condenser to produce a vacuum.
  9. (steam engines) The cold water thrown into a condenser to produce a vacuum.
  10. (category theory) A morphism from either one of the two components of a coproduct to that coproduct.
  11. (Contruction) The act of inserting materials like concrete grout or gravel by using high pressure pumps.
  12. The act of putting a spacecraft into a particular orbit, especially for changing a stable orbit into a transfer orbit, e.g. trans-lunar injection

Hyponyms

Derived terms

Related terms

Related terms

Translations

See also


French

Etymology

Borrowed from Latin iniectiō, iniectiōnem.

Noun

injection f (plural injections)

  1. injection