Meaning of “injection” in the English Dictionary

"injection" in British English

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injectionnoun [ C or U ]

uk /ɪnˈdʒek.ʃən/ us /ɪnˈdʒek.ʃən/

injection noun [ C or U ] (DRUG)

C2 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.

More examples

  • 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.

(Definition of “injection” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"injection" in American English

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injectionnoun [ C/U ]

us /ɪnˈdʒek·ʃən/

the act of using a needle to put a drug into a person's body:

[ C ] an insulin injection
[ U ] vaccines given by injection

(Definition of “injection” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"injection" in Business English

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injectionnoun [ C or U ]

uk /ɪnˈdʒekʃən/ us

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.

(Definition of “injection” from the Cambridge Business English Dictionary © Cambridge University Press)