injection

noun14

1. •
   The act of injecting, or something that is injected.

   • For some indications in PET imaging, it is necessary for radiopharmaceutical injections to be administered contralaterally or pedally to the disease process — 2010
2. •
   The act of inserting materials like concrete grout or gravel by using high pressure pumps.
3. •
   The insertion of program code into an application, URL, hardware, etc.; especially when malicious or when the target is not designed for such insertion.
4. •
   Something injected subcutaneously, intravenously, or intramuscularly by use of a syringe and a needle.
5. •
   Fuel injection: the pressurized introduction of fuel into a cylinder.
6. •
   The act of throwing cold water into a condenser to produce a vacuum.
7. •
   The cold water thrown into a condenser to produce a vacuum.
8. •
   (figurative) The supply of additional funding to a person or a business.

   • The troubled business received a much-needed cash injection.
9. •
   A relation on sets (X,Y) that associates each element of Y with at most one element of X.
10. •
    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.
11. •
    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.

    • It had been determined that one of the whip turnstile antennas had broken off from Explorer 1 shortly after injection into orbit, so these were eliminated. — 2015
12. •
    Congestion (of a body part, with blood or other fluid), such as hyperemia.
13. •
    A specimen prepared by injection.
14. •
    A morphism from either one of the two components of a coproduct to that coproduct.