Meaning of INJECTION in English
in ‧ jec ‧ tion /ɪnˈdʒekʃ ə n/ BrE AmE noun
1 . [uncountable and countable] an act of putting a drug into someone’s body using a special needle ⇨ shot :
The nurse gave me a tetanus injection.
an injection of insulin
The children hate having injections.
The only sure treatment is antibiotics, preferably by injection.
2 . [countable] an addition of money to something in order to improve it
a massive injection of public funds
Our local football club may fold unless it gets a cash injection.
3 . [uncountable and countable] the act of forcing a liquid into something:
a fuel injection system
• • •
▪ have an injection
He had to have an injection to relieve the pain.
▪ receive an injection formal
The boxer received an injection of the drug before the fight.
▪ give somebody an injection
The nurse gave him an injection.
▪ administer an injection formal (=give somebody an injection)
She was taught how to administer an injection.
▪ a pain-killing injection
I needed a pain-killing injection in my elbow.
▪ an intravenous injection (=into a vein)
He had given the patient an intravenous injection to calm her down.
▪ a lethal injection (=one that kills someone)
Pinkerton was executed by lethal injection.
▪ an injection against something
You may need to be given an injection against tetanus.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012