injection
- Top 5000
Sense 1
- noun
- B2
The act of putting medicine into a person's or animal's body through a thin needle.
The nurse gave him an injection in his upper arm.
I hate needles, so injections always make me nervous.
You may need several injections before travelling to tropical countries.
The dentist gave me an injection to numb my gum.
Common collocations: give someone an injection · have an injection · get an injection · a painful injection · an injection in the arm · a flu injection
Part of: At the doctor's, Illnesses and symptoms
Sense 2 · less common
- noun
- C1
The act of forcing liquid or gas into a machine or a closed space, especially fuel into an engine.
Modern engines use direct fuel injection to burn less petrol.
The plastic parts are made by injection into a metal mould.
A blocked pipe stopped the injection of water into the system.
Common collocations: fuel injection · direct injection · injection moulding · injection system
Part of: Science and technology, Means of transport
Forms
- plural
- injections