injection
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Danh từ
noun- 1.
(countable, uncountable)The act of injecting, or something that is injected.
- 2.
(countable, uncountable)A specimen prepared by injection.
- 3.
(countable, uncountable)(category theory) A morphism from either one of the two components of a coproduct to that coproduct.
- 4.
(countable, uncountable)(construction) The act of inserting materials like concrete grout or gravel by using high pressure pumps.
- 5.
(countable, figuratively, uncountable)The supply of additional funding to a person or a business.
The troubled business received a much-needed cash injection.
- 6.
(countable, uncountable)(mathematics) A relation on sets (X,Y) that associates each element of Y with at most one element of X.
Đồng nghĩa: injective function
- 7.
(countable, uncountable)(computer security) 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
- 8.
(countable, uncountable)(space science) 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.
- 9.
(countable, uncountable)(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.
- 10.
(countable, uncountable)(medicine) Something injected subcutaneously, intravenously, or intramuscularly by use of a syringe and a needle.
- 11.
(countable, uncountable)(medicine) Congestion (of a body part, with blood or other fluid), such as hyperemia.
conjunctival injection
- 12.
(countable, uncountable)(internal combustion engines) Fuel injection: the pressurized introduction of fuel into a cylinder.
direct injection
tuned port injection
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Nguồn gốc từ
Middle French injection, from Latin iniectio. The mathematical sense is from French injection, introduced by Nicolas Bourbaki in their treatise Éléments de mathématique. Equivalent to inject + -ion.