Injection

Injection or injected may refer to:

Science and technology

 * Injective function, a mathematical function mapping distinct arguments to distinct values
 * Injection (medicine), insertion of liquid into the body with a syringe
 * Injection, in broadcasting, the level at which a subcarrier is sent by the transmitter, expressed as a percent of total modulation
 * Injection quill, used in the petrochemical industry to insert chemicals, typically inhibitors, for proper mixture within a base chemical
 * Fuel injection, a means of metering fuel into an internal combustion engine
 * Orbit injection, changing a stable orbit into a transfer orbit
 * Injection, in construction, insertion of consolidation materials (i.e., cement grout mixtures, gravel) by means of dry type rotary shortcrete high pressure pumps
 * Injection well
 * Injection moulding, a technique for making parts from plastic material

Computing

 * Code injection, a security violation technique using unexpected program modification
 * Dependency injection, a programming design pattern, also referred to as inversion of control
 * Email injection, a security violation technique using web email forms
 * Fault injection, a software testing technique
 * Network injection, an attack on access points that are exposed to non-filtered network traffic
 * SQL injection, a security violation technique using database commands

Arts, entertainment and media

 * Injected (album), a 1995 album by Phunk Junkeez
 * Injected (band), a rock band from Atlanta, Georgia
 * Injection (comics), an Image Comics science fiction series by Warren Ellis and Declan Shalvey
 * "Injection", song by Rise Against from The Sufferer & the Witness, 2006

Other uses

 * Injection (economics), a financial boost to an economy
 * Drug injection of recreational drugs