injections

Noun

injection (countable and uncountable, plural injections)

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 process2010, Paul Shreve, David W. Townsend, Clinical PET-CT in Radiology: Integrated Imaging in Oncology, →ISBN, page 78
2. A specimen prepared by injection.
3. A morphism from either one of the two components of a coproduct to that coproduct.
4. The act of inserting materials like concrete grout or gravel by using high pressure pumps.
5. (figuratively) The supply of additional funding to a person or a business.
   • The troubled business received a much-needed cash injection.
6. A relation on sets (X,Y) that associates each element of Y with at most one element of X.

   Synonyms:

   injective function

See all 14 meanings of injection