What does injection mean in English?

You can learn injection Pronunciation, Grammar & Synonyms in this most authoritative English Dictionary.

injection Meaning, Definition, Pronunciation, Grammar & Synonyms❤️

0 the act of putting a liquid, especially a drug, into a person's body using a needle and a syringe (= small tube):
- Daily insulin injections are necessary for some diabetics.
- This steroid is sometimes given by injection.
1 the introduction of something new that is necessary or helpful to a situation or process:
- A cash injection of £20 million will be used to improve the health service.
- an injection of humour/excitement
2 the act of using a needle to put a drug into a person's body:
- [ C ] an insulin injection
- [ U ] vaccines given by injection
3 the act of putting new energy or money into something in order to help it succeed:
- The investment bank needed a cash injection of about $3bn.

My arm was very tender after the injection.
If I'm talking a bit funnily it's because I've just had an injection in my mouth.
Most patients find that the numbness from the injection wears off after about an hour.
We took our cat to the vet's for its annual cat flu injection.
The injection provides some temporary relief from the pain.
Time-dependent characterization of the output radiation in a far-field zone was obtained for both free-running and injection-controlled operation with an unstable resonator 1 cavity.
Injection volumes were estimated by measurement of the displacement of cytoplasm after an injection at a controlled pressure.
As a check for potential peripheral effects of curare, the experimental duration of temporal resolution experiments before and after injection were compared.