1. The act of putting a liquid into the body by means of a syringe
   "the nurse gave him a flu injection";
   - shot, jab [Brit, informal]
    
2. The forceful insertion of a substance under pressure
   "The injection of fuel into the engine increased its power"
    
3. Any solution that is injected (as into the skin)
   "The nurse prepared the injection for the patient's vaccination";
   - injectant

Derived forms: injections

Type of: insertion, introduction, intromission, medical aid, medical care, solution

Encyclopedia: Injection