injecter

Injecter is a nonstandard spelling of injector, and is found in some texts referring to devices or software components that introduce a substance or dependency into another system. In general usage, injecters may be physical devices that administer injections or software mechanisms that supply dependencies to a component. The preferred spelling in most contexts is injector.

In medicine, an injector (often called a syringe or autoinjector) is a device that delivers a liquid under pressure into the body. Manual syringes require drawing fluid into a chamber and pushing the plunger; autoinjectors provide pre-filled doses and mechanical triggers. Common examples include insulin pens and epinephrine auto-injectors. Safety features include needle protection and dose accuracy.

In software development, an injector (more commonly "injector" or "dependency injection framework") is a component or framework that provides an object with its dependencies rather than having it construct them itself. This promotes decoupling, easier testing, and configurability. Examples include dependency injection containers used in languages like Java, C#, and Python; patterns such as constructor or setter injection.

In cybersecurity, injection can refer to attacks such as SQL injection or code injection; while "injecter" may appear in colloquial references to tools that perform injections, robust security practices focus on input validation and proper escaping to prevent such exploits.

See also: injector, injection, dependency injection.