Topic: HOSPITAL
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in‧jec‧tion S3

1 [uncountable and countable]MHMD an act of putting a drug into someone's body using a special needle [↪ shot]:
The only sure treatment is antibiotics, preferably by injection.
The only sure treatment is antibiotics, preferably by injection.2 [countable]BF an addition of money to something in order to improve it
injection of
a massive injection of public funds
a massive injection of public funds3 [uncountable and countable] the act of forcing a liquid into something :
a fuel injection system
a fuel injection system