Injection

Introduction of a drug or other substance into the bloodstream through the use of a syringe.

The act of injecting a liquid into the body.

A liquid introduced into the body.

Increased redness of an area due to dilatation and engorgement of the small blood vessels of the region, e.g., in conjunctivitis.

In medicine, the technique of forcing a liquid into the body by means of a syringe, a hollow-barreled cylinder with a plunger (though sometimes a rubber bulb) affixed to a needle.

Act of putting a liquid into the body forcefully by means of a syringe; the fluid may be injected into a vein (intravenous), muscle (intramuscular), under the skin (subcutaneous), or into the skin (intradermal) (compare infusion).

The act of forcing a drug or other substance physically into the body by syringe or catheter. Drugs may be injected under or through the skin or into a body cavity, a vein, or the tissues. Injection involves drawing up or loading the correct dose of a drug into a syringe, and injecting the drug into the body via a thin needle.

Introduction into the body of drugs or other fluids by means of a syringe, usually drugs that would be destroyed by the digestive processes if taken by mouth. Common routes for injection are into the skin (intracutaneous or intradermal); below the skin (subcutaneous), e.g. for insulin; into a muscle (intramuscular), for drugs that are slowly absorbed; and into a vein (intravenous), for drugs to be rapidly absorbed. Enemas are also regarded as injections.

The introduction of a substance into the body using a syringe and an attached needle. Injections may be given under the skin (subcutaneous), via a vein (intravenous), deep into a muscle (intramuscular), or into the fluid surrounding the spinal cord (intrathecal).

The forcing of a fluid into a vessel, tissue, or cavity.

Use of a syringe and needle to push fluids or drugs into the body; often called a “shot.”

The act of introducing a substance into the physical vessel via the implementation of a tubular instrument, often referred to as a hollow needle. The substance’s delivery may occur subcutaneously or hypodermically, into the muscular tissue referred to as intramuscular or IM, through the vein known as intravenous or IV, or via the rectum through the process of rectal administration.

The act of introducing a liquid substance or inoculum into a particular medium by utilizing a hypodermic needle or similar means is a distinct procedure that should not be mistaken or conflated with infiltration. It is important to note that the terms are not interchangeable and should be used in their appropriate contexts to avoid confusion or misinterpretation.

The act of introducing a fluid into the body using a needle and syringe is commonly known as the process of fluid administration or fluid injection.