n 1 a  :  the act or an instance of injecting a drug or other substance into the body  b  :  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 cavity  c  :  an act or process of injecting vessels or tissues : also  :  a specimen prepared by injection  2  :  the state of being injected  :  CONGESTION - see CIRCUMCORNEAL INJECTION  .
 
 
 
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