Definition of injection
1a : an act or instance of injectingb : the placing of an artificial satellite or a spacecraft into an orbit or on a trajectory; also : the time or place at which injection occurs
2 : something (as a medication) that is injected
Examples of injection in a sentence
The medicine cannot be taken orally; it must be given by injection.
an injection of a painkiller
The struggling company needed an injection of cash.
First Known Use of injection
INJECTION Defined for English Language Learners
Definition of injection for English Language Learners
: the act or process of forcing a liquid medicine or drug into someone or something by using a special needle
: the act or process of forcing a liquid into something
: the addition of something (such as money) that is needed to support something
INJECTION Defined for Kids
Definition of injection for Students
: an act or instance of forcing a fluid (as a medicine) into a part of the body by using a special needle <Insulin can be given by injection.>
Medical Definition of injection
1a: the act or an instance of injecting a drug or other substance into the bodyb: a solution (as of a drug) intended for injection (as by catheter or hypodermic syringe) either under or through the skin or into the tissues, a vein, or a body cavityc: an act or process of injecting vessels or tissues; also : a specimen prepared by injection
Seen and Heard
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