Functional Concept
injection Audio
in·jec·tion [ in-jek-shuhn ]
Subclass of:
Drug Administration Routes
Definitions related to injection route of drug administration:
  • (injection) Use of a syringe and needle to push fluids or drugs into the body; often called a "shot."
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • (injections) Introduction of substances into the body using a needle and syringe.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (injection route of administration) Administration of a drug into a location within the body; this can be achieved either through an established access or via a needle.
    NCI
    U.S. National Cancer Institute, 2021
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