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Injection or its variants may refer to:

Arts, entertainment, and media[edit]


Science and technology[edit]

  • 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

Other uses[edit]

  • Injection (economics), a financial boost to an economy
  • Injection, in construction, insertion of consolidation materials (i.e., cement grout mixtures, gravel) by means of dry type rotary shortcrete high pressure pumps
  • Injection moulding, a technique for making parts from plastic material
  • Injective function in mathematics, a function mapping distinct arguments to distinct values

See also[edit]